I couldn't find anything specific regarding this as all flag questions seem to address the flag in particular, that said:
I usually wouldn't post anything like this as it is just a flag, and the question was closed anyways - however, this seems to happen a bit with my declined flags.
For this exact case, the question was: https://stackoverflow.com/questions/15759141/how-to-slow-down-progressively-a-web-application
And I flagged it for moderator review. I then see that the flag was declined by "declined - a moderator reviewed your flag, but found no evidence to support it", and when looking at the question, I see:
closed as not constructive by tjameson, Álvaro G. Vicario, J. Steen, Rikesh, Andrew Barber♦ 19 mins ago
And while I can understand a question being closed by the close votes of users with enough rep, it was also closed by a moderator. I flagged specifically "needs moderator attention". Granted I chose other with "Asking to sabotage code" and then was slightly verbose as I wasn't quite sure how to mark it, but it shouldn't have affected the fact that it did need moderator attention, and was closed by a moderator as well.
My question in short is "What?" and "How does that happen?"
Entire flag message:
Asking to help sabotage code. Not sure if I should have marked it this way or "Not Welcome in out community" as I believe it fits that title, though not really it's description. ^^
Flag decline reason:
declined - a moderator reviewed your flag, but found no evidence to support it
Need Moderator Attention -> other