That's because Stern will kill anything that threatens the PERCEPTION of the integrity of the game. But I think most of the guards in the NBA, when they "drive hard" to the basket embellishes the smallish contact on the offensive end. I'm talking about Kobe and Wade to old school throw your leg out supers stars like Reggie Miller and John Stockton. Most of the players that actually tries to plays solid defense (including no Euros like Varejo, Battier, and Artest) embellishes on the defensive end. The reason you don't see as many flops (most of time it comes from charges) is because there is a lack of good rotational defense. How often do you see "non-floppers" rotate and actually draw a charge instead of committing a foul? Any time you have a sport where refs have to make bang bang decisions, human perceptions comes into play and players have to do what they have to do to influence the decision.