Salvia? She has a long way to go to catch up with Lindsay or Paris.
That said, I think people are missing the point. Miley Cyrus has been marketed as a youth/tween/teen icon since she was very young. Like it or not she really is a role model for a ton of young girls, and I'd imagine the dream girl of a lot of guys of a certain age as well.
It's one thing if some general rock star with a counter-cultue or "extreme" message is caught doing drugs, I mean you pretty much expect that, and even if not proven they are more or less shouting it from the rooftops in a lot of their music and public performances. Most rock stars are not considered positive role models for that reason, Miley was being marketed as something else.
When a child "idol" grows up and wants to move away from that defining image, it can be a big deal. A lot of them never make a transition into a more "adult" mould largely because they upset so many people in doing so.
I'd immediatly be guessing that Miley's "Bong Adventure" was intentionally leaked as a way of gradually trying to make the transition. I sort of suspect her nude photos a while back were an attempt to test the waters here, with "she was exploited" being the planned "parachute" (which was deployed) when it failed. This is round #2 so to speak.
As far as doing crack out of a stripper's cleavage, it might come to that, I mean Lindsay Lohan seems to have gone there, but I so far don't get the impression that Miley is *that* wild even at her worst. Even if she is, it seems like she has a good organization running her still, so I don't imagine we'll see that level of drama (though I could be wrong). It's noteworthy that Lindsay seemed to pretty much be running around with a single Bodyguard/Babysitter, whether she wants it or not it seems like Miley has far more of a constant entourage, that's in part why I think this was leaked.