How do you know?
According to his latest CD's, he quit for a while to see what it feels like to be "high on life", to show that he didn't need the weed. Then he started smoking again.
He makes videos for Hustler.
Because I have worked with dopers for 2yrs(volunteer at a prgram to help these types get jobs). Folks like him just don't up and quit. I said the same thing about Rodman when he said he was clean. Some on this board said the same thing to me, "How do you know?". Well, we know how his story unfolded.