I don't "hate" porn stars. I simply wouldn't want to date one, for a host of reasons. Higher disease risk is one. Yes, I know they get regularly tested, but shit still happens. But mainly because sex is intimate. Even a one night stand with a stranger whose name you never learn can be incredibly intimate. And sex is private. Even casual sex with a casual partner - even, perhaps, sex at a sex club or orgy - has a degree of privacy. Porn is neither intimate nor private. It's partly acting, yet it's real enough for arousal and ejaculation, and it's very, very public. Its whole purpose is to be public. So if a single person wants to do porn, great. If a single person with a very open or tolerant partner (or another adult actor) wants to do porn, then great. But I think it's fair enough that the average person probably doesn't want to date a porn star.