How do duplicate answers (auto) works?
38992
Is the duplicate answer flags raised for exact copies of answers of different users?
157628
Autocomplete username references in answer posts
148956
Is there any value to NOT deleting my own duplicate question?
153800
What if two answer are correct on Stack Overflow?
51087
Remove votes to close question X as a duplicate of Y if question Y is closed as a duplicate of X
78861
Why are there two separate boxes about duplicate questions?
3385
Automatically redirect anonymous user from unanswered duplicate question to corresponding answered version
112256
Should I still post an answer if I see several answers have already been posted while writing an answer or making a fiddle?
152605
Duplicate Low Quality Post in First Post & Late Answer - Double Flag?
33805
Migrated question's answers can be upvoted twice by the same user
71646
Duplicates of an outdated question
36484
Handling answers that build heavily on (or are copied outright from) existing answers
81081
Can a single user post two answers for one question?
44876
Answer appears automatically converted as a comment
138119
Duplicate question close reason says "already has an answer," which is often false
102097
How to find all questions that were duplicates of another question?
113626
"Close as duplicate" - what if only the answer is a duplicate?