You could create a Nostr protocol with a delete message, but the problem there is of course it would be a "soft delete", since anyone scanning the messages unde

You could create a Nostr protocol with a delete message, but the problem there is of course it would be a "soft delete", since anyone scanning the messages under the hood can see the original. In some sense a regular site is like that (you could see it on Internet Archive, but maybe that is less likely to be done, and it is coming from a secondary source anyway).