That being said:
Do NOT use words that are widely accepted as being hurtful. - not even in some self-indulgent idea of "irony." I will get angry. You won't like me when I'm angry.
Do NOT post personal information about other people. I don't care if you dislike someone or they are an asshat or not: that doesn't give you the right to expose their phone number to a gazillion people. This, too, will make me angry.
Do NOT post pornography of ANY KIND. I like porn, you like porn, the intertron is full of porn - we can get it elsewhere.
Do NOT post graphic and gorey images to shock people. (If you got the graphic from the stileproject, it fits this category). This will make me VERY angry.
Do NOT harrass other users. Picking on people is something you do before you become an adult. And we're all adults here, right?
Do NOT reply to spam and bot posts. Here is a really good reason why not to. Just ignore them; an admin will clean them up shortly.
DO post images you've made yourself about the games, the RRF, and your characters (as long as they don't violate the above rules).
DO feel free to write a thousand posts about your character's day and chronicle his or her existence.
DO post about a plan you have to take down a building or stronghold in the hopes that other people will join you.
DO post lots of fan fiction about Betty and Veronica and their shared life experience while on vacation in Hawaii.
DO crush and maim your foes.
I'm not going to define any hard-and-fast rules for infractions. I'm not big on the ban-stick, but I'll use it if things can't be resolved in some other way.
Now, for your amusement, here is a harman getting killed: