Ideally nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z could have some way to NOTIFY without it nagging every time, but them still being able to see it in the relay list if they ignore it :)
Currently it's basically impossible to know if the user ever saw it or if their client doesn't support it