Râu Cao ⚡ on Nostr: Sorry, I see what you mean now. The relay would have to reject edit messages that are ...

Sorry, I see what you mean now. The relay would have to reject edit messages that are too late, because the client could be offline and doesn't get a timestamp from the relay, only from the sender. But people don't want smarter relays, so that's out of the question I guess.

Delayed sending on client-side is definitely better than not trying to solve it at all!