If I flag a post or comment, and my flag is declined, but I think that declining it was the wrong decision, what should I do?
Before today, whenever this has happened, one of the following has applied:
1) I realise, after reading the flag rejection reason, that my flag was misguided. I walk away feeling slightly foolish, but having learned something.
2) I'd used one of the generic flagging reasons, but it was a slightly non-obvious case. I reflag with a custom reason explaining the problem in detail, and second time around my flag gets acted upon and considered helpful.
I'm pretty sure that my actions in case #2 are reasonable; plainly I shouldn't just reflag over and over until my flag succeeds, but if I've given a generic flag in a complicated case and it gets declined, reflagging once with a more verbose and explanatory description of the problem is (I would think) plainly the right thing to do. However, I've just come across the following scenario:
3) I flag with a custom reason explaining in detail why a post should be deleted, and my flag is rejected, but I feel certain that the wrong decision has been made by the moderator and their rejection reason doesn't make sense.
What should I do now? I have no idea what flagging history, if any, the mods see in their moderation tools; can I reflag with a reply to the moderator explaining why their rejection reason was a mistake, or if I want to reraise the issue, do I need to reflag as though the flag is completely new? Should I reflag at all, or is the right response to having a flag declined to accept that you can't win them all and walk away?