Perhaps, but there is a kernel of truth in what the parent comment says. As long as an IP address can be associated to an undeniable identifier, like an addres

Perhaps, but there is a kernel of truth in what the parent comment says. As long as an IP address can be associated to an undeniable identifier, like an address, credit card, SSN, etc., your identity and activity can ultimately be tracked. Perhaps not by Google, but by your ISP and thus the government who can coerce that ISP, or by business partners your ISP sells that information to. The buck has to stop somewhere--and it stops at what packets your ISP handles, and thus has the ability to inspect, on your IP address's behalf.