I don't really know about posting rules, as such....The only real rule would be something like:
"If you're easily offended, or thin-skinned, don't bother coming here."
I have a board on Yahoo, called "Think For Yourself, Dammit!," which was intended to be something of a rants page, where people could post what they thought about what was wrong with society, or their own personal pet peeves, and such, but it's ended up being sort of a place where all of my friends (we all know each other and live close together) post interesting or funny articles and such. I'd really like a board, though, where people can just come and bitch and vent and blow off steam about what pisses them off. I think people need that, ya know?
Like for instance....animal testing pisses me off....it's cruel and unnecessary in cosmetics testing and the like, for one thing. For another thing, animals often don't give accurate results when it comes to medical testing, and I think that death-row inmates should be used instead. They ought to be made to work for their keep instead of being taken care of with MY money. Screw "cruel and unusual."
Speaking of which, the whole "cruel and unusual" debate concerning the death penalty pisses me off, too...but I'll save that for if I get the forum...
Sidhe