fans of the other team mad? Danny Ainge was similar. So was Marshall Henderson, my neighbor down the street and millions of other people. These types are characterized by getting in silly fights and taking the ball and going home when things don't go their way. I saw one Lone Peak game a few years ago and Nick Emery came off that same way. Maybe Nick changed on his mission (or the game I saw was an outlier) - I will go out on a limb and predict that Nick will be a very good player and will be a lightning rod for haters.
I know a lot of Ute fans overreacted to Cooper. In the the 90s I watched a Ute fan in the MC (upper seats) yelling at Cooper nonstop during warmups. He wore a shirt that said "I Hate Nate Cooper". He was so loud that Cooper was looking at him. The Ute fans around me were making fun of the crazy Cooper hater (I am sure he heard us). He was an embarrassment.