Stan was or is a Rangers fan. I don't know how many times he's publicly admitted, but I've long since thought he was a Rangers fan, there's been clues for a long time now. Although people have said they thought he was an Islanders fan.
His Rangers posts recently actually do come off as a very jaded fan who has had enough, and not so much a guy that hates the Rangers and is glad they're currently they're in the toilet.
I remember him very smugly attacking Tuukka Rask on twitter during that 2013 playoff series, which I think was won by the Bruins in 5 games and led to Torts being fired at the conclusion of the series. Rask slipped and fell during what I think was the lone game the Rangers won in that series and Stan was really ripping him for that.