There's the FAQ, forum etiquette, the forum rules, blah blah blah. Admittedly, there is a lot to go through, and most of it winds up being ignored anyways.
There's no penalty for having a low reputation, and no reward for having a high one. The only number like that that has any bearing, is your feedback. Nobody cares about post-count, nobody gives two shits about reputation points. Your feedback, though... That's the real thing to be concerned about people f**king with.
Baltan negged practically every post in this thread, and hell, I think I am going to join in just for f**k's sake.