What to do with an old question that may receive better answers on a different SE?
71551
Is it OK to cross-post an old, unanswered question?
141815
Rolling back a completely changed question
3302
Does it make sense to answer old questions?
31462
Should I flag old questions?
55508
Should I copy my answer to a duplicate question to the original question?
84067
How to deal with upvoted yet clearly wrong answers
151073
What to do with a question that was based on a wrong assumptions?
9977
Policy on accepting answer after question is no longer relevant to original poster
71476
How to deal with duplicate answers posted long after first answer(s)
137083
Is it OK to copy parts of an answer from one SE site to an answer on another SE site?
102333
What to do with closed questions with out of date answers?
133307
What to do when a user radically changes their own question?
90029
Is it ok to answer based someone's older answer on SE?
77790
How to deal with old questions that are off-topic and cannot be migrated?
86188
Get attention to a new answer to an old question
60013
What to do with bounty on question which is no longer relevant?
39269
What to do when someone other than the author changes a question to fix a substantive problem with the code