Is it considered poor form to answer old and inactive questions? (thread resurrection)
3302
Does it make sense to answer old questions?
114866
Is it OK to edit and cut down an overly verbose question to try and make it a more "canonical" question?
31462
Should I flag old questions?
22841
Discourage questions being marked as answered within an hour or so of being posted
146448
Can we implement a dead time on answers for high reputation user
60643
Should Stack Overflow/Exchange have a mechanism for marking obsolete questions?
83017
Is there a way to tag a question as old or outdated?
109724
Is it okay to repost a question from another website that was never answered there?
64859
Is it acceptable to add a duplicate answer to several questions?
116563
Where to post a "canonical answer" when it's not in response to a specific question?
122272
What is the difference between "hot" and "active" questions?
27040
Is posting someone's comment as an answer okay?
130860
What to do when your question has an old, stale, unanswered duplicate?
145092
What should we do with old, very popular closed questions?
4067
Enable automatic deletion of old, unanswered, zero-score questions after a year?
14618
Is it okay to repost a reformulated question that is closed (or on hold)?
91658
why are unanswered questions not sorted by date?