As it currently is you can't stop them from using an undeclared IP range to crawl you. This doesn't change that. "Everybody except X is allowed" rules have al

As it currently is you can't stop them from using an undeclared IP range to crawl you. This doesn't change that. "Everybody except X is allowed" rules have always been "on your honor" type restrictions. "X" can always claim to be Joe Rando.