when Vincent Price played creepy people, did people think Vincent was creepy or that he was just playing a part?
so why, when a musician and performer does something similar do so many assume 'that is their persona'. Ozzy was obviously doing a bit and wasn't like that off stage or in interviews. He was a good person who had addiction issues and a tendancy to do what people prohibited (like standing on top of a tram car in the Sandia Mountains hundreds of feet above the ground.
It's true that some people in music may be Satanists, Ozzy was not one of them.