I'll tell this story if this is just a thread for everyone to affirm their suspicions that Kyrie is a dick.
Before they moved into the Auerbach Center, the Celtics practiced at BSC Waltham, where I was a member. I used to see Celtics fairly regularly, but I never bothered any of them. I once saw Smart just standing at the bottom of a staircase I was going down. I thought about saying hi but he had this look on his face that just said "talk to me and I will punch you in the face" which to be fair, might just be how he looks all the time. Most of the players I did see have interactions were cool, including IT, Jaylen and Avery Bradley. Assistant GM Mike Zarren would actually play ball with us from time-to-time and you could ask him stuff and he'd be pretty open to answering most of them. Mike Z is awesome.
Anyway, one day we were playing 3 vs 3 and Kyrie just walks into the gym with a few other people. He was walking towards an exit door in the back, but he was probably about ten feet from where we were playing. The guy I was checking the ball with said "What up Kyrie?" certainly loud enough for him to hear him. So of course, Kyrie just keeps walking straight ahead with a blank stare on his face. I totally understand that these guys don't want to be harassed, and perhaps even a small interaction can lead to people taking their phone out and whatever, but I always thought it was pretty lame for him to just ignore the guy. All he had to do was just say "What's up guys?" and kept walking and that would have been it.