Thought id make this thread as a bit of a joke, but with some truth lol..
Basically, post "rules" that you think people should follow on this site, not like "Do not spam" etc. but like these..
Here are the ones i thought of:
1. Do not type like a 4 year old. Try to use some punctuation and correct spelling.
2. Avoid xMrFoxhoundx and SundanceKid, unless you want to be raped over the internet.
3. Never visit a glitching site, because this straight away makes you a hacker. 
4. Read the thread before you post, to avoid being pizzowned.
5. If your going to own someone, make sure its a good solid one lol, dont leave yourself susceptible to a counter-own.
6. Try to stay in a clan, and dont be a clan whore. (Goldenshot

)
& thats all i can think of lol, im sure you lot can come up with some funny ones..