I'm pretty sure posting the direct link is some sort of violation...I dunno. lol I know it is for almost every single message board I've ever been a part of, so I assume.
I think porn is absolutely fine, provided it, like all "vices," remains in moderation. I do agree with pfrog in that it is a rather disgusting industry that I'm not at all a fan of, which for me personally, puts me in a bit of an awkward situation. I don't like the professional industry, but I'm a fan of the product. That said, I usually keep away from "professional" production and tend to either read mine online (I've been recommended 50 Shades though) or go the "self made" route.
I don't think your past (which if you will allow me to say, I'm sorry that ever happened to you

) precludes you from it. As long as you keep it in moderation and as long as you keep in mind that it is exaggerated and acting, you're good to go, I'd say.