Multiline comment
18647
Commenting out large sections
27938
Creating multiline strings in JavaScript
85844
Can the longer comment bug be fixed?
61657
HTML comments within comments?
154556
Comment editing grace period
10881
Formatting should not count towards the character limit on comments
115318
Can we get an indication comments are hidden between the comments?
70837
Source Code Margin Comments
19115
Mark a comment as the answer to a question
114694
Editing old/others' comments
9269
Let's make it easier to reply within comments!
41144
Touch friendly comments
26650
Text formatting now allowed in comments (List of proven and disproven abilities)
154006
Allow linking (suggested) edits to one comment
142717
Using Unicode Zero Width Spaces allows all space comments
128064
Is the @reply in a comment to the editor of a post broken?
127922
Why not allow shorter comments?