I feel bad for the guy. And he is in a very difficult situation. It really is tough for teams to keep taking chances on him, when the risk of him going off the reservation is so great. But I also wonder how he would react to not having basketball in his life. From what I have heard, he is at his best during the regular season, when he is occupied with basketball related activities, and can live a structured life, but then falls apart in the offseason, when the structure goes away.
Whether this is the straw that breaks the camel's back (the camel being his career) or not, I hope whenever he does hang it up, that he can find structure elsewhere, to not slide back into bad situations.
I think its also important to realize that his issues go beyond just his disorder. He also has some questionable characters around him when he goes back home...and that seems to be when he gets in trouble.