Right now, a script is currently recalculating everyone's mojos. There should be some pretty big changes.
For one, a couple of "bugs" in the calculation allowed some bona fide trolls to stick around when they should've been autobanned. That's been fixed.
Also, it's been too easy to get mojo bars four and five. We've adjusted the formula, and it should boost the number of 2-bars and 3-bars users, but will somewhat drop the 4s, and significantly drop the number of 5s. Five bars should be an epic accomplishment.
But this is just the first step. On tap for the next couple of days, we're going to start penalizing more harshly for being hide rated. Right now, a user can get a ton of hide rates, but if uprated by others, it mitigates the damage to her or his mojo. No longer. If a user has a history of being hide rated (across multiple threads and time), it doesn't matter how much uprating happens, that user will be penalized much harsher.
We're also working on a formula that will sniff out flame wars automatically and give time outs to people engaged in ratings wars. Upon first transgression, they'll have their rating ability pulled for a week, then two weeks, and upon a third strike -- all-time ban on rating.
In short, we want to make people think twice before they deliver that donut. There's a proper way to use them -- to penalize real trolls or people who step beyond the bonds of civil discourse. Use them improperly, and you could pay a steep price.
We always knew that our mojo formula -- much more complicated than in the past -- would require serious tweaking as site usage patterns developed. Well, this is but a first step. We'll continue to tweak as necessary.