Perhaps I'm jumping the gun here.
Yes, Carlos Boozer is still officially a member of the Utah Jazz, but I can never remember a member of the Jazz being so uniformly disliked while still a member of the team. Legions of Jazz fans still curse (unfairly, I think) Derek Fisher's terminated contract and subsequent move to the Lakers. And Jazz fans delighted at the subsequent failures enjoyed by Howard Eisley and Shandon Anderson when they spurned the Jazz and bigger paychecks for more exotic home locales. But these players were beloved until they moved elsewhere.
There was John Amaechi who claimed he was disliked because of his sexual orientation, but in reality was disliked because of the multi-year vacation (contract) he took at the Jazz's expense. Perhaps the most comparable Jazzman, in terms of negative fan sentiment, is Greg Ostertag who was booed so intensly and frequently during the regular season that he had his family stop attending games. But Amaechi was a benchwarmer and Ostertag provided enough effort during the post-season and enough amusing quotes to the media that he was tolerated.
The most intense vitriol from Jazz fans is saved for arguably the most dislikable player in the NBA: Kobe Bryant. Obviously, Kobe is not a popular player in any NBA arena not named Staples Center, but there is a special hatred in the hearts of Jazz fans for the self-proclaimed "Black Mamba" (which is one of the dumbest nicknames ever, by the way).
Kobe's arrogance, his rape accusation/adultery and subsequent ring purchase, and the fact that he has, in the latter half of his career, had the Jazz's number more than any other player certainly provides sufficient fodder for this hatred, but the fact that Kobe hates Jazz fans as much as they hate him just throws gasoline on this malevolent fire.
What are you doing with your middle finger, Kobe?
But if/when Boozer gets traded and returns to the Tox Box, will there be a new threshold of disdain established? If history is any indication, Boozer will probably pull a Derrick Coleman and have a phantom injury when he returns to the House that Larry Built.
Regardless, let's stay classy, SLC.