@Martin if you're around can you tell me if for this question the active 3 days ago is caused by any deleted answer(s) and/or actions on those deleted answers?
I have noticed that even users below 10k can see (some part of) deleted post if they find reopen or suggested edit review - here are examples I happen to have at hand: https://mathoverflow.net/review/reopen/96268 and https://mathoverflow.net/review/suggested-edits/95740