I mean I understand the purpose for putting it on the sign, but if you are the type of person who is going to do it...is a sign really going to deter you?
I have no problem with my own nudity and don't really care if anyone catches a glance. It's just skin and if you take care of yourself, there's no reason to be ashamed. I have a problem being surrounded by the types of old s**** fat people who attend nudist colonies.