Consider pagination for unbounded endpoint responses

MSC_CHECKLIST.md

@@ -25,6 +25,7 @@ clarification of any of these points.
 - [ ] Are backwards-compatibility concerns appropriately addressed?
 - [ ] Are the [endpoint conventions](https://spec.matrix.org/latest/appendices/#conventions-for-matrix-apis) honoured?
     - [ ] Do HTTP endpoints `use_underscores_like_this`?
+    - [ ] Will the endpoint return unbounded data? If so, has pagination been considered?
     - [ ] If the endpoint utilises pagination, is it consistent with [the appendices](https://spec.matrix.org/v1.8/appendices/#pagination)?
 - [ ] An introduction exists and clearly outlines the problem being solved. Ideally, the first paragraph should be understandable by a non-technical audience
 - [ ] All outstanding threads are resolved