Don't forget the bonus: all your forum accounts can be linked to your google account, just in case you didn't use your gmail as the email address.
But I'm kinda hoping that the reason I keep having to identify cars and store fronts is that my refusal of third-party cookies is causing them to have no idea who I am. But that might be the optimistic view.
In any case, I wouldn't mind if sites stopped using recaptcha.