I have seen many new users posting comments as an answer, which is wrong. Some new users have good knowledge but they can't add comments because they don't have 50 reputation.
I agree that some users post comments that are not related to the topic; to deal with that, other users can raise "not an answer" flags.
My question is: Why don't we provide a limit of 1 or 2 comments to the new users on a daily basis?
To help new users write more useful comments the community can give some suggestions to the new user in additional comments.
I read "Why do I need 50 reputation to comment? What can I do instead?", but it doesn't prevent many new users from writing comments in the answer section because they need more information in order to offer an answer.
- New users should be permitted a limited number of comments.
- The community can give suggestions to a new user for avoiding wrong comments.
- The comments become visible after a review and acceptance by another user with enough reputation.