This question already has an answer here:
I flagged this answer because it is clearly a comment in my opinion, and not only in my opinion but in the answerer's opinion, too. (See his own comment below.)
So I don't understand why I got this for my flag: "declined - flags should not be used to indicate technical inaccuracies, or an altogether wrong answer". This is not a wrong answer, this is not an answer. There's no other problem with it, probably it is a good comment.