How to handle well-formulated duplicates vs bad original question
14629
Should I vote to close a duplicate question, even though it's much newer, and has more up to date answers?
81937
How far can I refactor the code in someone else's question?
36484
Handling answers that build heavily on (or are copied outright from) existing answers
14618
Is it okay to repost a reformulated question that is closed (or on hold)?
148956
Is there any value to NOT deleting my own duplicate question?
71206
Suggestions for editing old "Not constructive" question into constructiveness so that it can be preserved
154856
Wording of "possible/exact duplicates" when closing the question
87154
What to do if an out of date question+answers already exists?
94974
Asking similar questions - process?
55508
Should I copy my answer to a duplicate question to the original question?
112077
How to check if a value already exists to avoid duplicates?
51087
Remove votes to close question X as a duplicate of Y if question Y is closed as a duplicate of X
44392
Questions closed as duplicates should include a link to the original question
79850
Interview - Detect/remove duplicate entries
133576
Should we reword the closure text for duplicate questions?
32895
How can I avoid asking duplicate questions?
16653
How to deal with obsolete answers?