Look at Arduino (the tag on SO)! You could go through them and close half of them.
Haha I don't know where I got the "in a few minutes part."
Anyway, it'd be cool if we could create an efficient query that returned potential posts that need... help. It might match certain keywords for criteria (some tag specific and some not).
What if we could then create like an external SE review queue to try to clean up some tags.
I think that, if there was participation, it might be okay. However: two problems...
1.) SE has a big enough problem with finding people for the queues that are official and smaller