this is a much harder question for me than you probably realize.
since the instance is still in its infancy and i don't like the idea of stifling anyone's creativity, i haven't written out a NSFW policy.
i imagine there probably should be some sort of NSFW policy, but what that should be is the hard part.
i am inclined to think, if your writing is NSFW (explicit sex stuff), then that writing should not be publicly listed for the reader page -- and that's about it.