Lol, that will never work. By definition each client is holding your notes and can rebroadcast anywhere their user wants them to, including private relays that you will never see.

I don't care. I'm asserting my rights as Data Owner.

You might need to study the legal notion of implied license. This has been tested multiple times in the courts already. Property vs. Copyright: Legally, the email content is not considered "property" in the traditional sense; rather, it is a literary work protected by copyright law upon creation. While you are the author and hold the copyright, the recipient receives a copy and typically gains an implied license to use, store, or share that content unless a prior agreement (like an NDA) restricts this.

You might need to speak to your lawyer.

I just did. I sent your post to him :)

No, that's not the "design of nostr" that's your implementation of nostr. Outbox is not a requirement and it's a hindrance to privacy and security of using nostr. Users can pay for federated relays plenty exist, no need for forced outbox.

I tried those systems. They don't work. Half of the information on nostr doesn't even load on them. And then 6 months later those servers disappear and all users get rug pulled. Even the paid services have left users hanging.

This is exactly why pubky.tech is going to overtake Nostr.

lol.