One of the web sites I often visit recently introduced a + or - feedback on each user post, in the forms of green thumbs up or red thumbs down. Yes I know the system is not new, but it seems to be working at this site. (Users should also be able to choose to view only posts that meets certain votes, say only positive votes, or only views above -1 or +2 votes.) I find that on that site, since the introduction of the new system, certain people who many would classify as trolls pretty much ceased their inflammatory comments, because they know that if they are rude, their comment would get a neg and not be seen, but if they are helpful they will get a positive. I think it'll be beneficial to introduce something similar to MR. Not saying it'll replace the moderation, but it'll complement moderation. What do you guys think?