Coming soon to a site very near us: Closing changes: on hold, unclear, too broad, opinion-based, off-topic reasons, bye-bye to Too Localized
I'm hopeful that this will help us with some of the challenges we've had on site about when/how/why to close and how to ensure that, if we do close, the OP knows exactly what they need to do and why. It won't be perfect but I think it's an improvement.
See Are we happy with our 'off-topic' subject areas? for a discussion of the up-coming changes to the off-topic closing reason specifically for this site.