- Gay:
- Yes: Pertaining to, related to, or indicating homosexuality.
- No: Bad, stupid, silly, etc.
- Rape:
- Yes: Sexual assault.
- No: Casual reference to a win or loss.
- Retard:
- Yes: None.
- No: Idiot, describing a person who is stupid, silly, ignorant, etc.
- Fat & related words:
- Yes: Describing the physical state of a person or thing.
- No: Making a moral judgement or expressing disrespect based on the physical state of a person or thing.
And of course you are expected to avoid using derogatory or obscene language based on race, sex, gender, religion and so on. But I wanted to call out the slang above explicitly because these uses are so common in gaming.
A little picky? Maybe.

If you have any questions or comments about this policy, please feel free to contact me at mania@wow-petopia.com.