Add the ability to flag comments
113039
Cannot flag comment in Android app
128175
Could the favourites mechanism be extended to include comments?
100443
Notification for comment upvotes
9269
Let's make it easier to reply within comments!
19895
Highlight OP's comments on the Android mobile app
134930
Please make the multiple comment timer less annoying (non-resetting etc.)
105542
Allow flagging a comment after upvoting it
150724
Give us a flag link in the Edit Review queue
132534
Allow moderators to undelete the comments deleted after being flagged by a single user
80007
Drop "not constructive", combine "noisy", reword "rude" and "other" comment flags
131902
Could we provide some automatic feedback on (enough) unfriendly/rude comments?
80261
notification for comments on Example Questions in Area51
70875
Comment flags are broken
54493
Allow new users to comment for X times in a day
2662
Show vote counts on activity>comments page
34814
Mandatory comment after downvote
101219
Allow comments for all users; create comments review queue