Today I failed a test when reviewing late answers from new users. The user made a post with a single link and I didn't do anything with it.
The answer was useful, but it should have been a comment because it was only a hyperlink. Since new users can't write comments, it was the best thing he could do to help the questioner.
So I'd like to know what to do at posts like that one. Should I post the answer as a comment, and flag the question as "not an answer"? Or Should I just flag it and an operator will post it as a comment? Anyway I think, the user who posted the answer will lose something, because his help will appear with the name of somebody else.