This question already has an answer here:
My opinion is that comment privileges are allowed until 50 reputation for what purpose" The Askubuntu Help Page says:
Privileges control what you can do on Ask Ubuntu. Gain more privileges by increasing your reputation (points you receive from your fellow users for posting helpful questions and answers):
I think this is an incentive for me and you to be helpful onsite and to research well; and I believe I do. But I don't have a lot of questions. Posting answers tend to need more attention to a subject than I see others posting them give. And I have learned the rules here at 35. It would be helpful if I could comment on others questions sooner.
I could be more helpful if I could comment without having to climb, as I have a lot of comments that could be made now that I have learned the rules. Can I get some feedback please?
And thanks in advance.