I don't know why a tinfoil hat would be required to speculate here. As with the cookie proposal, this potentially puts Google into a position where they can pro

I don't know why a tinfoil hat would be required to speculate here. As with the cookie proposal, this potentially puts Google into a position where they can profit by further intermediating between the marketer and their target. Or if you prefer, they can help safeguard the privacy of their email users.