You havent read the thread introducing the "rep" button have you? It's not right to do that..
To encourage the recent forum-quality revolution, we have re-implemented the reputation system! previously removed, with this system you can rate posts. This is supposed to encourage good behaviour, be a good poster and accumulate as much rep points as possible! We might possibly re-implement the rep score-board again. (Removed at the moment because it puts strain on the already extremely busy toribash server)
Repping is anonymous, but before you choose to blatantly abuse the rep-system to flame someone and feed your grudge, remember that the staff can still see what you rep, please report rep abuse to the moderators
Thanks, post a lot, make them good posts, and get rep! ;)