I've only really seen one guy dunking on him inappropriately. Everything else I can remember has to do with how his game will age, especially related to his health, and I know that for myself, I now feel more open to be honest with myself about that--in the sense that, because he was our beloved "Fun must be alwalys" son, it was easy to be in denial about his progression and where his game was likely headed, particularly after another knee surgery.
Now, with Vegas, that's a problem for them to deal with. And I certainly don't think that perspective, or rooting against him simply because he's with Vegas now, is enough to be called "dunking on him."