I've seen a bunch of them this year, ranging from 0c posts noobs, to bid boting and even up to big SP alt accounts self voting.

automating the flag rewards campaigns

Or you could make something like Smartsteems smartmarket, but for flagging. Then you could say, oh I want this this and this flagged, put the post in a database table 'flag_queue' or something, then any people that have joined up that have VM above whatever they set, lets say 95% if any of the guys have enough it will flag till its 0c. :)