All purely political topics should be moved to Politics & Society, even if the discussion doesn't really concern politics moreso the society at all. At least, it keeps everything organized in a forum sense.

As for the signature campaign, it would be best to leave it there. It's up to the nut jobs to join the campaign if they'd like to. If their comments on certain topics become directed towards personally attacking someone, one can always report them and they'd be dealt directly.