I flagged a post as "unclear what you're asking", which was then closed as "unclear what you're asking". However, in my Flagged Posts history it shows as declined:
How does that happen?
It appears that a moderator declined the flag. At the point that the flag was handled, the post had already been put on hold. As a moderator, I try to use "declined" sparingly. I would not recommend that moderators decline flags in such situations.
The good news is that declined flags do not have any bearing or your reputation or standing with this site. There has been some discussion of using a "flag weight" concept to ignore flags from users with many declined flags, but as far as I know, nothing has come of it.
Once you get 3000 reputation you no longer have to flag posts as off-topic. At that point you start voting on them which closes them more directly. Then there will be no chance that moderator will handle your flag after the closure has already been dealt with.