Thanks for the question
My experience was that the majority of college underclassmen (ie those living in the dorms) didn't respond well to reasonable when partying. No offense, but most of them wouldn't bother to read and pay attention to something that didn't irritate them, that is, a jerky notice. Many of the highlights of hilarity at our staff meetings were RAs sharing how they managed to finally get their points across. Sorry if you happen to be a student, but lots of students act like idiots on these occasions, esp. after excessive drinking.
At the site where this is linked, there's another link about Kentucky fans celebrating by setting stuff on fire. Thats a lot of fun to manage! I think the carrying on about this (as if he ruined the whole U-Conn triumph?) is much dumber than the email, considering how dumb it is to ruin your education for celebratory flipping of cars. If that kind of activity was unusual, then perhaps his message would be out of line but...
So...I think the RA was acting the jerk to get his point across and try to make sure that if there were problems, they were not on his floor. He had the unlucky draw to have duty that night, and his thanks was his floor plastering the email on the internet. A-holes who couldn't recognise he was trying to do his job and make sure stuff they'd all regret didn't happen. 'Mean old RA tried to rain on our parade.' Yeah, I think it was a pretty immature move.
And yeah, I'd probably rather have a beer w/him than the guys on his floor.