18 or older seems to be reasonable rule, and should over all western countries.
The danish law says, that it is illegal to distribute porn with models under 18, and illegal to have porn with models under 18 (unless the model is over 15 and agreed to that you can have the photos - Since the age of consent is 15, this makes some sense)
- But a photo of a naked girl isn't considered as porn, so distributing pictures of a 15-17 year old models striking a sexy, naked pose is completely legal - and major newspapers/magazines does. (And I must say, when I was 15, I prefered the pictures of the younger girls - Now I consider a 22-year old woman, a young girl, and 15-year old girl is a child...)
I dont think we have any thoughtcrime-laws, and I don't think/hope we will - The danish lawmakers are generally pro-free speech (Even if we have to live with the fact that german neo-nazists print their stupid things here...)
I agee with seraph0x, the law should punish people for their acts, not their thoughts.
On the child-porn issue the line is thin, if you obtain/pay for actual child porn, you ARE part of the problem, and should be punished!
If you read a story about it, or follow a tease featuring some 19-year old model pretending to be 16 - So what, you probably don't act on it - If you would you are probably already in prison (After doing all the crimes you have seen on TV...)
Anyways the site will never comply with every rule everywhere, but if it enforces the 18-year rule it should be pretty safe from law-suites. (Age of consent around the world:
http://www.avert.org/aofconsent.htm )
So now we just need a volunteer to check all the classic-teases?