My flag on the comment of this answer was declined. It's a standard comment to remind OP to accept an answer. I think we can remove these comments after a while if the answer is indeed accepted. But the flag "It's no longer needed" has been declined and I would like to understand why.
In this question, I flagged two comments, one has been transferred to an answer, and the other is a suggestion to write the first comment has an answer. I also thought they both could be flagged as "It's no longer needed" but one as been declined, and the other, for some mysterious reason is still pending.