That’s how it was explained to me. I don’t understand the tech deep enough to answer the first point. 

Second point is that in any other tech they don’t truly own it. Nostr is able to do that. Only way to own a direct communication to your fans is via email. Everything else is a walled garden. So utilizing nostr for facilitating this is my point. That’s why I state it’s radically different than what the nostr ethos is about. But this would still only be accomplished by using this tech