RULES! READ THESE!
Now, I know you expect to see some giant list of dos and don'ts here. But that's not how I run my forums. No, I don't block out any curse words. No, I do not make a rule against cursing. But keep it down a bit. Don't go overboard and you'll be fine. Also, try to keep it in the realm of tv censorship.
Don't start flame wars. Now, arguments are allowed. They're bound to happen, and it's near impossible to keep up with all of them. So long as you don't just start flaming back and forth it's allright. If you have a serious problem, PM a mod or me.
Allright, this is basic. Don't go around posting porn and hentai. Just because this isn't a kids forum doesn't mean that's what it's for. Take it somewhere else.
NO GOD DAMN SPAMMING. If you're going to be a spammy spammer(I am too at times) go to the spam topic I'll make in the chat board. Don't just clog up all the real discussions with two word replies.
Since I know it will come up at some point, if there is a topic about religion, politics, or other such shaky subjects, and you are easily offended, DON'T READ IT. This board has a free speech policy. If someone wants to speak their mind and they do it in a civil manner, they are perfectly welcome to. But I don't want gigantic battles starting up because somebody poked their nose somewhere and got offended.
In the art forum, stick to creative criticism. Don't bash someone because they suck at drawing, it's not cool.
other then that, just use good judgement. Most situations can be avoided if people would just do this on a regular basis.