So of course there are impostor accounts on nostr. Nothing we can do about it.

But nostr clients could help by displaying some relevant stats wherever possible, but esp in search and follow pages/dialogs.

Some kind of flagging system could work (though it's gameable of course). Maybe "show only flags by people I follow" could do it.

Personal flags, that only I see, so I don't mistake real Lyn Alden for an impostor if it's in the feed posted by someone else by accident, that would help too.