diff --git a/src/Universalis.DbAccess.Tests/MarketBoard/ListingStoreTests.cs b/src/Universalis.DbAccess.Tests/MarketBoard/ListingStoreTests.cs
index ea4db3ea..c1359f28 100644
--- a/src/Universalis.DbAccess.Tests/MarketBoard/ListingStoreTests.cs
+++ b/src/Universalis.DbAccess.Tests/MarketBoard/ListingStoreTests.cs
@@ -44,23 +44,7 @@ public async Task ReplaceLiveRetrieveLive_Works()
         Assert.All(currentlyShown.Listings.OrderBy(l => l.PricePerUnit).Zip(results), pair =>
         {
             var (expected, actual) = pair;
-            Assert.Equal(expected.ListingId, actual.ListingId);
-            Assert.Equal(3, actual.ItemId);
-            Assert.Equal(93, actual.WorldId);
-            Assert.Equal(expected.Hq, actual.Hq);
-            Assert.Equal(expected.OnMannequin, actual.OnMannequin);
-            Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
-            Assert.Equal(expected.Quantity, actual.Quantity);
-            Assert.Equal(expected.RetainerName, actual.RetainerName);
-            Assert.Equal(expected.RetainerId, actual.RetainerId);
-            Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
-            Assert.Equal(expected.DyeId, actual.DyeId);
-            Assert.Equal(expected.CreatorId, actual.CreatorId);
-            Assert.Equal(expected.CreatorName, actual.CreatorName);
-            Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
-                new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
-            Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
-            Assert.Equal(expected.SellerId, actual.SellerId);
+            AssertEqual(expected, actual);
         });
     }
 
@@ -79,23 +63,7 @@ public async Task ReplaceLiveRetrieveLive_Cached_Works()
         Assert.All(currentlyShown.Listings.OrderBy(l => l.PricePerUnit).Zip(results), pair =>
         {
             var (expected, actual) = pair;
-            Assert.Equal(expected.ListingId, actual.ListingId);
-            Assert.Equal(3, actual.ItemId);
-            Assert.Equal(92, actual.WorldId);
-            Assert.Equal(expected.Hq, actual.Hq);
-            Assert.Equal(expected.OnMannequin, actual.OnMannequin);
-            Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
-            Assert.Equal(expected.Quantity, actual.Quantity);
-            Assert.Equal(expected.RetainerName, actual.RetainerName);
-            Assert.Equal(expected.RetainerId, actual.RetainerId);
-            Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
-            Assert.Equal(expected.DyeId, actual.DyeId);
-            Assert.Equal(expected.CreatorId, actual.CreatorId);
-            Assert.Equal(expected.CreatorName, actual.CreatorName);
-            Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
-                new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
-            Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
-            Assert.Equal(expected.SellerId, actual.SellerId);
+            AssertEqual(expected, actual);
         });
     }
 
@@ -132,25 +100,7 @@ public async Task ReplaceLiveRetrieveLiveMultiple_Works()
             Assert.All(currentlyShown.Listings.OrderBy(l => l.PricePerUnit).Zip(results), pair =>
             {
                 var (expected, actual) = pair;
-                Assert.Equal(expected.ListingId, actual.ListingId);
-                Assert.Equal(5, actual.ItemId);
-                Assert.Equal(93, actual.WorldId);
-                Assert.Equal(expected.Hq, actual.Hq);
-                Assert.Equal(expected.OnMannequin, actual.OnMannequin);
-                Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
-                Assert.Equal(expected.Quantity, actual.Quantity);
-                Assert.Equal(expected.RetainerName, actual.RetainerName);
-                Assert.Equal(expected.RetainerId, actual.RetainerId);
-                Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
-                Assert.Equal(expected.DyeId, actual.DyeId);
-                Assert.Equal(expected.CreatorId, actual.CreatorId);
-                Assert.Equal(expected.CreatorName, actual.CreatorName);
-                Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
-                    new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
-                Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
-                Assert.Equal(expected.SellerId, actual.SellerId);
-                Assert.Equal(DateTimeKind.Utc, actual.UpdatedAt.Kind);
-                Assert.Equal(expected.Source, actual.Source);
+                AssertEqual(expected, actual);
             });
         }
     }
@@ -185,25 +135,7 @@ public async Task ReplaceLiveRetrieveManyLive_Works()
             Assert.All(expectedListings[i].OrderBy(l => l.PricePerUnit).Zip(results[new WorldItemPair(93, i)]), pair =>
             {
                 var (expected, actual) = pair;
-                Assert.Equal(expected.ListingId, actual.ListingId);
-                Assert.Equal(expected.ItemId, actual.ItemId);
-                Assert.Equal(expected.WorldId, actual.WorldId);
-                Assert.Equal(expected.Hq, actual.Hq);
-                Assert.Equal(expected.OnMannequin, actual.OnMannequin);
-                Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
-                Assert.Equal(expected.Quantity, actual.Quantity);
-                Assert.Equal(expected.RetainerName, actual.RetainerName);
-                Assert.Equal(expected.RetainerId, actual.RetainerId);
-                Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
-                Assert.Equal(expected.DyeId, actual.DyeId);
-                Assert.Equal(expected.CreatorId, actual.CreatorId);
-                Assert.Equal(expected.CreatorName, actual.CreatorName);
-                Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
-                    new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
-                Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
-                Assert.Equal(expected.SellerId, actual.SellerId);
-                Assert.Equal(DateTimeKind.Utc, actual.UpdatedAt.Kind);
-                Assert.Equal(expected.Source, actual.Source);
+                AssertEqual(expected, actual);
             });
         }
 
@@ -245,25 +177,7 @@ await store.RetrieveManyLive(new ListingManyQuery
             Assert.All(expectedListings[i].OrderBy(l => l.PricePerUnit).Zip(results[new WorldItemPair(93, i)]), pair =>
             {
                 var (expected, actual) = pair;
-                Assert.Equal(expected.ListingId, actual.ListingId);
-                Assert.Equal(expected.ItemId, actual.ItemId);
-                Assert.Equal(expected.WorldId, actual.WorldId);
-                Assert.Equal(expected.Hq, actual.Hq);
-                Assert.Equal(expected.OnMannequin, actual.OnMannequin);
-                Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
-                Assert.Equal(expected.Quantity, actual.Quantity);
-                Assert.Equal(expected.RetainerName, actual.RetainerName);
-                Assert.Equal(expected.RetainerId, actual.RetainerId);
-                Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
-                Assert.Equal(expected.DyeId, actual.DyeId);
-                Assert.Equal(expected.CreatorId, actual.CreatorId);
-                Assert.Equal(expected.CreatorName, actual.CreatorName);
-                Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
-                    new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
-                Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
-                Assert.Equal(expected.SellerId, actual.SellerId);
-                Assert.Equal(DateTimeKind.Utc, actual.UpdatedAt.Kind);
-                Assert.Equal(expected.Source, actual.Source);
+                AssertEqual(expected, actual);
             });
         }
 
@@ -300,4 +214,27 @@ public async Task RetrieveManyLive_ReturnsEmpty_WhenMissing()
             Assert.Empty(value);
         });
     }
+
+    private static void AssertEqual(Listing expected, Listing actual)
+    {
+        Assert.Equal(expected.ListingId, actual.ListingId);
+        Assert.Equal(expected.ItemId, actual.ItemId);
+        Assert.Equal(expected.WorldId, actual.WorldId);
+        Assert.Equal(expected.Hq, actual.Hq);
+        Assert.Equal(expected.OnMannequin, actual.OnMannequin);
+        Assert.Equal(expected.PricePerUnit, actual.PricePerUnit);
+        Assert.Equal(expected.Quantity, actual.Quantity);
+        Assert.Equal(expected.RetainerName, actual.RetainerName);
+        Assert.Equal(expected.RetainerId, actual.RetainerId);
+        Assert.Equal(expected.RetainerCityId, actual.RetainerCityId);
+        Assert.Equal(expected.DyeId, actual.DyeId);
+        Assert.Null(actual.CreatorId);
+        Assert.Equal(expected.CreatorName, actual.CreatorName);
+        Assert.Equal(new DateTimeOffset(expected.LastReviewTime).ToUnixTimeSeconds(),
+            new DateTimeOffset(actual.LastReviewTime).ToUnixTimeSeconds());
+        Assert.Equal(DateTimeKind.Utc, actual.LastReviewTime.Kind);
+        Assert.Null(actual.SellerId);
+        Assert.Equal(DateTimeKind.Utc, actual.UpdatedAt.Kind);
+        Assert.Equal(expected.Source, actual.Source);
+    }
 }
\ No newline at end of file
diff --git a/src/Universalis.DbAccess/MarketBoard/ListingStore.cs b/src/Universalis.DbAccess/MarketBoard/ListingStore.cs
index 343c2964..87f92ff8 100644
--- a/src/Universalis.DbAccess/MarketBoard/ListingStore.cs
+++ b/src/Universalis.DbAccess/MarketBoard/ListingStore.cs
@@ -113,10 +113,10 @@ public async Task ReplaceLive(IEnumerable<Listing> listings, CancellationToken c
                 batch.BatchCommands.Add(new NpgsqlBatchCommand(
                     """
                     INSERT INTO listing
-                    (listing_id, item_id, world_id, hq, on_mannequin, materia, unit_price, quantity, dye_id, creator_id,
-                     creator_name, last_review_time, retainer_id, retainer_name, retainer_city_id, seller_id, uploaded_at,
+                    (listing_id, item_id, world_id, hq, on_mannequin, materia, unit_price, quantity, dye_id,
+                     creator_name, last_review_time, retainer_id, retainer_name, retainer_city_id, uploaded_at,
                      source)
-                    VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)
+                    VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
                     ON CONFLICT (listing_id) DO NOTHING;
                     """)
                 {
@@ -131,13 +131,11 @@ INSERT INTO listing
                         new NpgsqlParameter<int> { TypedValue = listing.PricePerUnit },
                         new NpgsqlParameter<int> { TypedValue = listing.Quantity },
                         new NpgsqlParameter<int> { TypedValue = listing.DyeId },
-                        new NpgsqlParameter<string> { TypedValue = listing.CreatorId },
                         new NpgsqlParameter<string> { TypedValue = listing.CreatorName },
                         new NpgsqlParameter<DateTime> { TypedValue = listing.LastReviewTime },
                         new NpgsqlParameter<string> { TypedValue = listing.RetainerId },
                         new NpgsqlParameter<string> { TypedValue = listing.RetainerName },
                         new NpgsqlParameter<int> { TypedValue = listing.RetainerCityId },
-                        new NpgsqlParameter<string> { TypedValue = listing.SellerId },
                         new NpgsqlParameter<DateTime> { TypedValue = uploadedAt.UtcDateTime },
                         new NpgsqlParameter<string> { TypedValue = listing.Source },
                     },
@@ -147,6 +145,7 @@ INSERT INTO listing
             try
             {
                 rowsUpdated += await batch.ExecuteNonQueryAsync(cancellationToken);
+                await _easyCachingProvider.RemoveAsync(ListingsKey(worldID, itemID), cancellationToken);
             }
             catch (Exception e)
             {
@@ -176,9 +175,9 @@ public async Task<IEnumerable<Listing>> RetrieveLive(ListingQuery query,
         await using var command = _dataSource.CreateCommand(
             """
             SELECT t.listing_id, t.item_id, t.world_id, t.hq, t.on_mannequin, t.materia,
-                   t.unit_price, t.quantity, t.dye_id, t.creator_id, t.creator_name,
+                   t.unit_price, t.quantity, t.dye_id, t.creator_name,
                    t.last_review_time, t.retainer_id, t.retainer_name, t.retainer_city_id,
-                   t.seller_id, t.uploaded_at, t.source
+                   t.uploaded_at, t.source
             FROM listing t
             WHERE t.item_id = $1 AND t.world_id = $2
             ORDER BY unit_price
@@ -205,15 +204,15 @@ ORDER BY unit_price
                     PricePerUnit = reader.GetInt32(6),
                     Quantity = reader.GetInt32(7),
                     DyeId = reader.GetInt32(8),
-                    CreatorId = string.Intern(reader.GetString(9)),
-                    CreatorName = reader.GetString(10),
-                    LastReviewTime = reader.GetDateTime(11),
-                    RetainerId = string.Intern(reader.GetString(12)),
-                    RetainerName = reader.GetString(13),
-                    RetainerCityId = reader.GetInt32(14),
-                    SellerId = string.Intern(reader.GetString(15)),
-                    UpdatedAt = reader.GetDateTime(16),
-                    Source = string.Intern(reader.GetString(17)),
+                    CreatorId = null,
+                    CreatorName = reader.GetString(9),
+                    LastReviewTime = reader.GetDateTime(10),
+                    RetainerId = string.Intern(reader.GetString(11)),
+                    RetainerName = reader.GetString(12),
+                    RetainerCityId = reader.GetInt32(13),
+                    SellerId = null,
+                    UpdatedAt = reader.GetDateTime(14),
+                    Source = string.Intern(reader.GetString(15)),
                 });
             }
 
@@ -263,9 +262,9 @@ public async Task<IDictionary<WorldItemPair, IList<Listing>>> RetrieveManyLive(L
         await using var command = _dataSource.CreateCommand(
             """
             SELECT t.listing_id, t.item_id, t.world_id, t.hq, t.on_mannequin, t.materia,
-                   t.unit_price, t.quantity, t.dye_id, t.creator_id, t.creator_name,
+                   t.unit_price, t.quantity, t.dye_id, t.creator_name,
                    t.last_review_time, t.retainer_id, t.retainer_name, t.retainer_city_id,
-                   t.seller_id, t.uploaded_at, t.source
+                   t.uploaded_at, t.source
             FROM listing t
             WHERE t.item_id = ANY($1) AND t.world_id = ANY($2)
             """);
@@ -311,16 +310,16 @@ FROM listing t
                         DyeId = reader.GetInt32(8),
                         // Large hashed IDs are interned as they will likely be reused when
                         // the same item is requested again
-                        CreatorId = string.Intern(reader.GetString(9)),
-                        CreatorName = reader.GetString(10),
-                        LastReviewTime = reader.GetDateTime(11),
-                        RetainerId = string.Intern(reader.GetString(12)),
-                        RetainerName = reader.GetString(13),
-                        RetainerCityId = reader.GetInt32(14),
-                        SellerId = string.Intern(reader.GetString(15)),
-                        UpdatedAt = reader.GetDateTime(16),
+                        CreatorId = null,
+                        CreatorName = reader.GetString(9),
+                        LastReviewTime = reader.GetDateTime(10),
+                        RetainerId = string.Intern(reader.GetString(11)),
+                        RetainerName = reader.GetString(12),
+                        RetainerCityId = reader.GetInt32(13),
+                        SellerId = null,
+                        UpdatedAt = reader.GetDateTime(14),
                         // Small strings, but with only a few possible values
-                        Source = string.Intern(reader.GetString(17)),
+                        Source = string.Intern(reader.GetString(15)),
                     });
                 }
             }
diff --git a/src/Universalis.DbAccess/Migrations/0014_DeleteIdentifyingColumns.cs b/src/Universalis.DbAccess/Migrations/0014_DeleteIdentifyingColumns.cs
new file mode 100644
index 00000000..1ad5957e
--- /dev/null
+++ b/src/Universalis.DbAccess/Migrations/0014_DeleteIdentifyingColumns.cs
@@ -0,0 +1,20 @@
+using FluentMigrator;
+
+namespace Universalis.DbAccess.Migrations;
+
+[Migration(14)]
+public class DeleteIdentifyingColumns : Migration
+{
+    public override void Up()
+    {
+        Delete.Column("creator_id").FromTable("listing");
+        Delete.Column("seller_id").FromTable("listing");
+    }
+
+    public override void Down()
+    {
+        Alter.Table("listing")
+            .AddColumn("creator_id").AsString().Nullable()
+            .AddColumn("seller_id").AsString().NotNullable().WithDefaultValue("");
+    }
+}
\ No newline at end of file