It's not going to make you run out and act psychotic, but it's all part of a general lifestyle and outlook. I think it really depends more on your personality type and the kinds of stuff you do already... not to mention your background, etc. I generally think that porn is destructive and does much to keep people from proper, healthy intimacy with their partners, but I certainly understand the attraction to it, and I don't think it necessarily outright destroys lives at the drop of a hat. But again, I think it has more to do with the individual. For some, it could likely cause a lot of problems. For others, it might not. I find it morally reprehensible generally speaking, and I can't imagine doing that kind of shit for money, but that's another topic, really.