Update a question or post a new question?
130860
What to do when your question has an old, stale, unanswered duplicate?
157030
Seeking feedback on downvoted question?
83537
Add an answer to the question with many existing answers already
116563
Where to post a "canonical answer" when it's not in response to a specific question?
12347
How should I handle questions which are answered in the comments?
112256
Should I still post an answer if I see several answers have already been posted while writing an answer or making a fiddle?
97539
Etiquette for revision comments
105685
Use comments to ask for clarification or add more information, then what?
127373
What's the etiquette on re-asking questions?
117258
Is it ok to to delete and repost a duplicate question?
48120
Sorting new answers to old questions
61817
Comment first, then answer, what's the etiquette?
31531
What is the etiquette for modifying posts?
146398
Is there a way to edit a question without bumping it to the front page?
106952
"Please ask a new question" encourages question repetition for duplicates
71646
Duplicates of an outdated question
108460
Review first post / late answers: show other answers as well