What they said. (EDIT: "They" as in Evan and Steel.)
Granted, I'm not around nearly as much as other people (usually with Evan, TUSM, MIB, Squall, and sometimes Xzax if anything), but I haven't seen anyone being particularly "childish" or having a bad attitude or anything like that. Maybe that one tournament thread (the one Xzax & TUSM started), but that was just a moment of stupidity from everybody, and we all got over it.
I do think we need more bonding time, like the crew-only smashfest we had at the end of May. I know, I know, I didn't go, but now that I've actually been in a Brawl mood and somewhat more free to go to stuff, there hasn't been anything. x.x I can't offer a venue, but if something starts getting planned, I'll be more than willing to help out.
But yeah, if you're not gonna be more specific here, it's probably best to PM/IM/call/whatever whoever you're not happy with.