[ben_w]

That practically invites them to present a different page to google as to a normal user, the former pure SEO, the latter perhaps pure advertising.

[fjsolwmv]

And Google will happily deindex the site as soon as they find out

[ben_w]

Raising an interesting question: can a website owner (use the law to) ban google from accessing their website by any mechanism other than their crawler in order that google doesn’t find out?

Sure, obviously limited utility just like “the right to be forgotten”s flaw of diffing USA internet from EU internet to find specifically what people want forgotten, but shenanigans interest me.