Something that REALLY pisses me off when people blatantly ignore requirements for a roleplay. Oh you've said it is high casual twice? Oh here's a lower casual or high free level character sheet.

ANOTHER something that pisses me off is when people try to shove non-canon stuff into a roleplay when a gm says that he doesn't want non canon abilities or whatever be it in a roleplay than a person tries to get something in like that anyways.