When you get right down to it, looked at objectively, sports fans writ large are really freaking stupid when their teams are doing well.
They're fans are possibly the worst cross-section of humanity.
To be fair, I grew up liking the Flames, and I'm sure if I ever went to Calgary and interacted with their redneck fans, I would have hated them too, but the proud history of whining losers just make me run the other way when I see whichever stupid logo they happen to be wearing at any given time.