When browsing the homepage, I often come across new answers that don't qualify as answers (e.g. they are actually other questions, or just a comment). I then, of course, flag them. But in the case where there are already comments such as "This does not provide an answer [blablabla] - From review", it is obvious that some other user previously flagged it, and that it is already in the review queue.
So, in this case, should I still flag these posts as "not an answer"? Does it serve some useful purpose, like voting for these posts to be deleted (assume I have access to the low-quality review queue), or does it just somewhat add noise to the system?