The groups I ran in tended to be more insular and less "open to the public" (not that "in with the in crowd" sense, but the "our group's drama is enough, pick-up groups don't need to add to it" sense). I've dealt with (and at times been the source of) plenty of it myself when the game was live, over things that ultimately didn't matter compared with the shutdown. It's easier to dismiss bad behavior when it happens, as "it's just a game" is a far lighter admission to me now than it was 10 years ago.
That's made me less of a curmudgeon in this new era, as when I run with people in the larger community through a mission... If they're immature, I finish the run, and say farewell. If they're mature and seem cool, I engage further.