Having been to dozens of Bruins games, I can tell you they are the most volatile and hostile of Boston sports fans, just very unrefined and reactionary. Some find it an endearing character, I dont, and don't really go to the games any more.
The weird thing about Boston sports fans is that they channel their anger and disappointment in strange ways, usually by turning on the team because of one play/game. I have a running joke with friends about this, that every time Piece misses a basket or a red sox player strikes out, "that's it, this team sucks, and always has". Bruins fans are the most notorious, where if a goal is scored it's "damn thomas, guy hasn't had the fire all season, he's a bum"
please don't think it's representative of the city or its sports fans. I'll admit there are still a few from the bussing/racist era left to die off, but the city is going in the right direction, albeit a little behind. we're the bluest state and the old guard and/or idiot townies arent representative of the majority of the city has to offer. It's just that every idiot sports fan has a megaphone with twitter where their stupid comments aren't kept within the confines of hearing distance.
that said, we also applaud and hold high our sports legends of whatever race or creed: