I never met to say or imply that he hasn't done good things for swimming, but I also must say that most of my friends that aren't in the know refer to him as the jerk with the fluffy hair.
He absolutely backs up his attitude (minus the 100 free debacle in Athens). I think for the most part his teammates like him and repsect his talent and he has done good things for USA Swimming.
Sure we all have our moments and I wouldn't judge anyone based off of what they did for a few minutes once. He was/is great to watch. I laugh while watching him.