How to comment on a question on another Stack Exchange site I newly joined?
2514
Why do I need 50 reputation to comment? What can I do instead?
58272
I cannot respond to comments on my own question (no "add a comment" link anywhere)
59454
Use of the comment package
148524
Why does Stack Overflow prevent new users from commenting?
99029
"Join this community" gives 404 when called from add comment on a site meta
68901
Where do I suggest new Stack Exchange sites?
53369
How to Give Credit for An Answer in the Comments
105348
What's the best way to invite a user to answer a question on Stack Overflow?
56900
How do users get started on new Stack Exchange sites?
70650
Can you add a separate discussion site?
7611
How could I notify Stack Overflow's expert users about my new question?
54493
Allow new users to comment for X times in a day
122243
When to answer vs when to just comment
121862
How do I comment on Mark Zuckerberg's posts?
47803
Answering the same question across the site
19672
FAQ for Stack Exchange sites
150661
New member unable to comment, answer gets deleted catch 22