Thanks for the input everyone.
Well I guess there's actually 2 issues for me.
There's the worry that some people might have actually been co-erced or forced. I had forgotten about the Linda Lovelace thing smoothy but I'm glad you reminded me. I guess there's a few things I've seen or read over the years that I've forgotten that has added to my concerns. I suppose there's just no way to really ascertain whether these claims are true or as you suggest 'excuses'. Then again I suppose people can be forced into a lot of things and I can't worry about them all. I expect it has happened on occasion so can only hope it is rare and getting more rare.
The other thing for me is that, as I simply can't imagine wanting to be a porn actress, I can't get my head around the motivation and worry that it attracts a lot of damaged people. For instance, I saw a programme once about a well-known current porn star and she got into it after she had been gang-raped. Now I can't for the life of me work out how going into porn helps you get over that. Then again, I know a lady in real lilfe who was raped and she is still self-harming years later. So who knows what is a good or bad way to deal with this stuff. I guess I have to respect the choices people make even if they make them for unhealthy reasons.
Thanks also for the tips on how to at least try to make sure the porn is less likely to be exploitative, that is helpful.
I think I need to mull this over a bit more before I really get my head around it but thankyou for all the comments, lots of different perspectives is always helpful.
I found this article which is pretty close to the worries I have, and I'm thinking it over:
Lights. Camera. Exploitation? - The Sex Industry, Love & Sex - The Independent
Incidently, one of the things that I'm thinking about is the guy in the article saying he can't be a politician since he used to be a porn-star. If everyone is so ok with porn these days why can't an ex porn-star have a political voice? We do live with a lot of double-standards these days don't we?