How to post a "Possible duplicate of [QUESTION]" comment?
4056
Can we clarify to the OP that their question is not yet closed and the duplicates are only suggestions?
105400
What should we do about *identical* cross-site duplicates? (i.e., copy-and-paste cross-posting)
3685
Confirming that my own question is a duplicate by voting to close should have immediate effect
133049
Way to convert an answer to a comment?
106883
Auto-flag duplicates of deleted questions for reopening / deletion
44392
Questions closed as duplicates should include a link to the original question
130608
Why can we flag/vote a question on Meta as duplicate of another question which has no accepted/upvoted answers?
116563
Where to post a "canonical answer" when it's not in response to a specific question?
154856
Wording of "possible/exact duplicates" when closing the question
9026
"Possible duplicate" notice not removed after reopening question
101911
I do not get notified when the system adds a canned "possible duplicated" comment
111204
Voting and flagging comments gets enabled when loading additional comments in duplicate question
28716
Is it OK to ask a duplicate question on purpose?
137347
How to ask multiple similar but different questions?
149234
Stop generating "possible duplicate" comments
135386
Should bug-report/feature-request *questions* that duplicate Grab-bag *answers* be closed as duplicates?
112391
How should one respond to "duplicate answer" flags?