Yes, that is of course a discussion of definition. But lets say how Twitter has to be able to delete a post, that should be considered here as well. This means the tools to do so technically and organizationally. For instance a filter for relays with certain features such as deletion and not share with other relays etc.

How does nostr accomplish deletion (not hiding) at the moment? Asking because I am very curious to learn (limited IT background). 🙏🏻