So when did this come into effect...? And how do you vote, etc? And how do you show who has a bad/good rep, etc?

Is that the little dot next to the name that is different colors for different people? If that is not it, then what is that?

Oh, and if you vote someone has a bad rep, then later you think they changed their ways, can you vote to bring their rep back up, or is it like voting for a thread, where you can't change your vote?

TGF