It's probably a liability from the nudity. Someone says "that's me! I didn't consent to my naked body being posted on the Internet!". Even if it was incidental,

It's probably a liability from the nudity. Someone says "that's me! I didn't consent to my naked body being posted on the Internet!". Even if it was incidental, but if it was allowed, it would bring about a bunch of perverts a-la "girls done wild: burning man '26".