Funny, I never thought of Stack as a dirty player. I just never really liked him, but I actually like him a little more for taking down Manu. He probably said to him on the way down: "you like flopping? you like flopping? now here's something for you to flop about!"
On the other hand, I have always really disliked Bruce Bowen and agree with Celtic above that Bowen shouldn't even be allowed to play. But, sadly, it will take a career threatening injury to a player of Kobe's stature before there is a rule change...