Forget anonymity. Theres only obscurity. Even if you opt out of all G products, they'll still be able to track you if your not behind the great wall
Most people are using Search, Gmail,
Installing Chrome, Earth...
Using Android phones!
G is also a domain registrar, with tools at least as developed as Netcomber. Webmasters all using GWT, GA, CDN,
They also deanonymize search and other traffic (browser fingerprinting, beacons). Their capabilities must be way better than what Adobe have gained through buying Omniture (who bought Touch Clarity)
Who knows if they have anything to track packets/wire through telco/isp arrangements & companies/software they acquired.
Amazing what metadata throws up for profiling purposes.
Really, its more than naive for anyone to act as if or think its 1996 still. The internet is revealing itself for what it has been for a long time: an identity based platform. G, FB etc are all key elements for the establishment interests in their goal of some kind of global multilevel governance for the web
Opinion piece over. I agree with you OP, but also with others here: this is spammy to G these days.
It will only get worse.
My thinking is that G will eventually eliminate (by punishing and making irrelevant) all hyperlinks. When they consider they have "Semantic" down pat, then G will decide what relevant other content to show you with some kind of dynamically created link through them (theres probably a US patent already).
Thats where personalisation ends up, to my mind. And yes, thats editorial power moving into censorship. Except it will be commodified in the form of some great new service, with {insert here} advantages over hyperlinks