When people try to jump into a roleplay with stuff that is completely contextually inappropriate for the RP (and post IC in an "Apply" category without waiting or asking for approval first!) so you and a fellow co-GM [i]politely[/i] ask them to remove/change said things and to please reread the OOC intro post to better understand the background set out by the GM, but all the guy does is argue with you and insist that he refuses to change it despite being asked several times. So you then reply, still politely, that if that's what they wanted to RP and they won't change to fit in with the story already going in the RP you are coGM'ing, then he should make an RP of his own where it WOULD suitably fit in with the lore, and that he's being kinda rude to keep arguing with us when we are only doing our job and weren't rude or aggressive to the guy in any way at all...

So the guy THEN goes and does the same thing in a bunch of RPs where he is again told it's not a cool thing to do, and he b'awws to that GM that he has been attacked and treated with hate by other members (I.e. our RP since its the only other one in his posting history rn)?! Making US look like nasty/bad people (until they go and read back, if they even do that at all), all because he can't do what he wanted to? Like, seriously.

Not cool dude, not cool. -_-