@mewmew If you receive a nude, it is meant for you, re-distributing it is a breach of trust. Also, I don't think copyright is as much of an issue here as I believe people have some rights over photos depicting them, especially in such a private context.
@mewmew But I think our disagreement extends over creative works as well. If you buy a print from an artist, and then start re-printing it and giving it away for free next to the artist, you are harming them and preventing them from continuing to create future artworks.