Should all users be able to comment?
2514
Why do I need 50 reputation to comment? What can I do instead?
78625
Time Limit on Comment Edit
50676
Is everyone in favor of the new "everyone can edit" idea? Is this really such a good idea?
23993
Allow moderators to edit/delete comments directly from the per-user comment moderation page
144201
Can I place  in a comment?
147193
Should the site prompt new users to include an @name in comments?
18490
Allow flagging comments on mobile site
24179
Comment posting issue
125048
Why can't I comment on my deleted posts?
105735
Flag individual comments or flag once for many?
20995
Comment status: are they 'disposable'?
68751
Unable to post any answer or comment with UNION - ALL
138671
Allow users to leave an anonymous comment when voting
47581
Marking comments as 'addressed by edit' to reduce noise
109956
How should we treat "don't forget to accept my answer" comments?
142814
How do you remove the ability for a user to make a comment or post on a page?
39421
A guide to moderating comments