[sixstringtheory]

My first guess is to only make it available in the first place to people using search while signed in. Could even sell it as a way to get the “faster” web by signing in. At least that way there’s a choice.

Making it default for everyone and then forcing people to sign in to opt out would be counterproductive from a privacy standpoint.

Could also just provide the original link right next to the AMP link in search results and let users decide.