"Closed as Duplicate" text is misleading when the duplicate is from the same user
106952
"Please ask a new question" encourages question repetition for duplicates
33449
Why does Stack Overflow allow duplicate display names?
135709
Duplicate post notice missing the duplicate
23256
Hat duplicates when info is expanded
126330
Wrong wording of close message when question is closed as duplicate of more than one
78861
Why are there two separate boxes about duplicate questions?
11295
What is duplicate content and how can I avoid being penalized for it on my site?
44392
Questions closed as duplicates should include a link to the original question
152605
Duplicate Low Quality Post in First Post & Late Answer - Double Flag?
45300
How to prevent duplicate usernames when people register?
16219
New flagging dialog has a duplicate for duplicate
38992
Is the duplicate answer flags raised for exact copies of answers of different users?
70074
How to handle a deliberate duplicate question
1663
Allow same user to add multiple links as possible duplicates
7097
Auto generated close as dupe comment appears only after a full reload
112760
Bug when marking a question as duplicate
43391
prevent user creating a duplicate node title