Someone said :
So I pose a question what is regarded as a permitted image. What would you regard as a permitted image.
The only person who can answer that is Thomas, as its his site and his rules.
Why don't you just mail him if your not happy with the many posts he has already made on the subject.
Personally i think it does not take very much common sense to tell the difference between art and porn. If it was my site and my income was at risk from losing advertisements due to certain content i think id b able to tell very quickly what was OK and what was not so maybe you need to look at i from that angle.