Why can’t I upvote a comment more than once?
54812
Comment upvote, undo, and then re-upvote: why not?
6193
Deleting a comment (mine) shouldn't count as a comment vote
105542
Allow flagging a comment after upvoting it
18896
How does comment voting and flagging work?
146255
How do re-open votes expire?
49847
Why does the reputation dropdown not show this upvote?
27051
Why only one @user per comment?
14969
Why do I require 15 reputation to just up-vote something?
125048
Why can't I comment on my deleted posts?
16370
How could a user with 1 reputation point leave a comment?
149099
Why is the [I'm Done] button unavailable after only flagging comments in the First Posts review queue?
116157
New reputation is too verbose: upvote/unupvote, upvote again
128265
Why is there a voting limit restriction on Meta?
24179
Comment posting issue
16226
When I delete a comment, then try to delete another comment too quickly, the error message talks about comment votes
50625
Can't flag an up voted comment
51954
"You can only post once every 40 minutes" on my first post