I can see where the guy you quoted was coming from. If you watch the video, it does appear that the kid was selling drugs in their establishment, and got caught. In that situation, a nice beatdown was probably justified. It's not likely he would go to the cops either. The only reason the bouncers got nailed was because they were cocky, and posted the video evidence that showed who they were.
How does it seem like he was selling drugs ? Because some bouncer pulled him aside, had him empty his pockets and he had a wad of cash ?
Kid doesn't portray the standard drug dealer, looks like an average 20 year old kid going out to the bar. No drugs were found on him either. People keep saying "the kid says "but thats my" (referring to his money), and the bouncer replies "THAT''S YOUR WHAT"; and since the kid doesn't answer him, IT MUST BE DRUG MONEY. Perhaps the kid just realized that telling him where it came from is irrelevant or realizes that the sooner he stops talking the sooner he can leave.
Let's all remember, the kid is at a strip club, people drop large coin at those places on a regular basis. Last time I checked, whores don't take credit card.