User does not have permission to comment on this post
8000
How do comments work?
23614
A method for the OP to accept comments?
89560
Allow users to see deleted comments on their own posts
36073
@ symbol not allowed more than once on comments
20778
Comment submission broken for comments that end with @username
66878
Taking ownership of comments on migrated questions
120358
Show the "add comment" link also to users who cannot add comments
29273
What is a "locked" post?
117800
Comments not showing time of posting under some circumstances
73116
How to stop spam in comments
148524
Why does Stack Overflow prevent new users from commenting?
133182
"Comments disabled" should not be a link
94123
Why are comments now disabled on the review queue?
48198
Community ♦ flagging freeform closed posts for comment
58991
How do I enable comments for user profiles?
138860
Can suspended users post comments? Get notifications? What happens to their reputation?
104814
'Daily vote limit reached' only for comments