Unmarking comment as useful?
49841
Cancelling upvote on comment?
53666
Make it possible to retract comment flags
72284
How to strip a listing of all (line and block) comments without leaving white space?
53828
Multiple spaces in code in comments get merged into one
156332
Comment editing timeout well before "link" is removed
142814
How do you remove the ability for a user to make a comment or post on a page?
63208
Making a Comment on a page without being on that page?
149870
URL not handled correctly in Comments
157042
Alternative Slick/Smart method to disply Recursive Replying Comments?
66878
Taking ownership of comments on migrated questions
61514
Comments containing long words causes comments to run off the edge of the screen
97330
How do I format a backslash as code with backticks in comments?
149234
Stop generating "possible duplicate" comments
43030
Can non-10k users see comments left on their deleted content?
105735
Flag individual comments or flag once for many?
122092
How can I remove all comments from a file?
10373
Can we get rid of the threshold of 15 chars for comments?