I don't have a list of fancy rules, but let me just say this; I desire literacy in my partners.
If you fit the literate category, then you know all the basic rules. You play your characters, I play mine. They come alive, are realistic, have descriptive backgrounds. I'm not saying make it the most angst ridden roleplay ever created, I'm just saying, bring your characters to life.
One liners are not tolerable, but a single paragraph can be. Can be. I tend to mirror what I'm given, but I like to set a standard of at the very least two paragraphs. Description adds colour and depth to our little world, and makes it so much cooler to envision and play.
Limitations aren't my thing. Gore isn't my thing, but it's not out the question. I can assure you we won't be playing intestine eating parasitic creatures though. (in retrospect...this type of gore is totally fine for a lycan roleplay). You can swear if you like, if you feel it best expresses what you're trying to say. I don't mind it coming from you or your character. Please keep in mind that our medieval, or more importantly regency era characters would not be dropping F bombs in polite society.
Then there is the smex. I like romance, I feel the roleplay needs a little bit of cupid's love. But I don't want a porno. If you want a roleplay based solely on the sexual gratification of the characters, you'll find that elsewhere, not here. Here, the characters will have lives beyond the bedroom, or wherever they choose to get down. Also, I don't feel every encounter needs to be played, because honestly that gets boring. After the first few times, once you lead up to it, no need to carry through, because really...we know what they're doing. You can sort of feel it out though, when sex should be played out, and when there's no real need for it.