Others also have that data
Discussion
Yes, it was my choice to make it public, but I own how it could ever possibly be manipulated. Just by the fact that my data is signed and you can't forge that.
Not if you don't post to their relays, unless you sell them access to your relay.
simply not true
all your notes are here:

My notes? Who cares? What even is that? I don't charge exclusive access to my notes!
If they can read your notes, they can store your notes on their servers. Then when you want to delete your notes, they don’t get deleted, i.e. you don’t own them anymore.
So if I can't melt gold down to dust, I don't own it? I can't destroy it, therefore I don't own it?
At least with a note, if someone gains access to it and tries to claim it is theirs, there is a natural mark on it that proves that claimant to be a liar and allows others to agree with me. Is that not ownership?
to own means to control fully
I don’t think a whitelist ability is possible in Nostr btw. Best you could do is encrypt the data and share the decrypt key with a list of users.
It's my relay ultimately delivering the data; it should definitely be possible.
Maybe…. But I know that Nostr relays don’t have the same authentication options as, say, Mastodon servers, which are heavily focused on controlling who can access the data.
All it needs to know is who the requester npub is; I'll know if they've paid or not and can return or block the notes.
The reality is, as soon as you sell access to a relay, it's effectively public. So the price should be pretty high 🤷♂️