Due to the wider information released about the flag weighting system and the fact that a user's flag weight is now revealed to them (well, sometimes):
As one of the new moderators on SU I've notice that a pretty small subset of users do a lot of the really good flagging, so I wonder if there should be a new badge created to be awarded to users that manage to the reach the maximum weighting score (or a lower threshold, or maybe two badges for different score levels, etc - whatever makes the most sense in terms of current flag weights I guess).
This will give a small reward (as well as being responded to first, of course) to the users who really make an effort to help keep the sites clean, and will hopefully encourage the same positive behaviour in newer and current users who currently don't bother.
I also wonder if worthwhile modifing the Citizen Patrol badge to award it only after a user has a flag accepted as valid, not when they post a flag, although I can see this causing confusion (why didn't I get my badge posts, etc) without some very careful wording, so this isn't something I'm really pushing.