I think that satanism is mostly just an excuse for people to do whatever they want and be jerks. The main appeal of satanism is that it promotes all the things that christianity says you shouldn't do, like casual sex, violence, pretty much do anything that you want and don't worry about a thing. Of course, it is only logical for satanism to promote sin, I mean, isn't that kind of how he's supposed to get your soul? And then, a lot of people just do it to be cool. The only thing seems pretty stupid and childish to me. I guess you could call it a religion, but it seems like more the abscense of one.