Sir, I disagree with your view. Screenshot detection is merely a warning to the counter party and can enhance security to some extent.

Gift wrapping can improve the privacy of normal DMs from 50 to 90 points. Of course, it has some drawbacks for development, but these are imperceptible to users.

It seems that Nostr hasn't been officially defined as a public publishing protocol? I think what's interesting about Nostr is that it can accomplish interesting things through any different nips.