The other key use case I have is effectively batching. Where you may want to lookup N profiles and understand which profiles you need to try fetch again from different relay/s, as didn’t return results - you got EOSE before a match for M query keys. Obviously max retries or attempts is needed as there may not be any results to find.

This is most useful when querying for updates against local cached event state. Or even against what your DB has.. like refreshing user profiles.