[DarkWolfrin]

If it's porn you see then you click on the report button in the bottom right corner of the post of the user.
We will be noticed about it and we'll do what will be needed.

I do not see why you won't be able to create such thread :D.
Just keep the notice if there is artistic nudity.
In your thread rules you can warn people of what is artistic nudity tho. So they do not post anything else.