What do I think?
I think people should stop to rely on drugs to look cool. If even you're no using it, it's so 5th grade during early 2000's to think you're cool because you're using drugs. It think is pathetic when people do it. Not only him bu many celebs like Madonna, or Miley or so many others....
I also think people should leave him alone. Stop trying to make it seems like every single problem anyone has is related to drugs. The guys has acne, so what? I'm almost 30 (even tho I look 17, thank you very much) and I also have it. It's on my genes. Anyway, IF he has a drug problem, I don't think these people are really trying to help him. They just want to attack him with an excuse to do so.
By the end of the day, I'm right and you're all wrong.
Have a nice day!