I couldn't date someone who was currently (or in the recent past) doing porn. The main reasons are probably that I'm not interested in the overall lifestyle, although I suppose the "lifestyle" might not be all that different than others imbedded in the entertainment and even night club businesses. I'd expect these people would just have a different idea of what's a fun way to spend their free time than me, and would be around too much sex and drugs and partying to have a good understanding of what's "normal" to me.
The next main reason is that I'd be grossed out at the thought of him having sec with others. I don't like to share. I wouldn't be jealous as much as just totally turned off and disgusted at the thought of what he did all day.
I'd also have an issue at the idea of bringing him around friends and family, and saying what he does! I'd be so embarrassed.
However, if a guy was a porn star when he was 18, but turned his life around and was living a mainstream life totally separate from that, I could come to terms with that. Everyone has a past. Stupid decisions someone made when they were young are ok with me, as long as the person has clearly gotten past it.
"I don't know! I don't know why I did it, I don't know why I enjoyed it, and I don't know why I'll do it again!" -BART SIMPSON