Yeah. I usually do the "No godmoding/Mary Sues" rule, and I try to adhere to that myself because I like to keep my characters realistic, but I have seen lot of people who seem to use that rule only as a way to make sure that their characters are better than everyone else's. That pisses me off probably more than anything else in roleplays.

I've also had a thing where I had a 1x1 with someone and then I made a group roleplay and they joined. Our characters had a romantic relationship in the roleplay and they automatically expected that our characters would develop a romance in the group roleplay, even though we both had different characters for this one. It was fine at first, but then they kept making their character hit on mine incessantly and kept sending me messages that were like "why do you make your character not like mine?" I eventually just got fed up and quit the roleplay.