Am not sure I agree with you, JB. Yes, there are some kind of XPT standards. And I'm certainly not advocating to start copying a/m site on XPT.

But if someone deems it necessary to take nude pictures of themselves or have them taken by someone considered close to oneself, I fail to see the harm in those pics ending up on the web eventually.
Agreed: it's mostly done out of revenge or for some other (less than noble) reason, which makes it kinda wrong etc. But it's about time people start to realize that attention whoring and "sharing everything with everyone else in your life" might just not be such a great idea.

All in all, I think it's a site with two noticeable advantages:
1. There's some lesson to be learned from it. See also Bornyo's post.
2. At the same time, we all get to look at naked women in all sorts and varieties. And, to be honest, the knowledge that those pictures where not intended for public consumption makes it a lot more enjoyable to browse than any run-of-the-mill picture of a nude female. At least, it does for me.