Earlier quoted context omitted.
Really? What can the consequences be? I'm not being flip-- I think it's easy to say that but its harder to pin down dangerous scenarios. The increasing fact is that the more Google knows about you, the better they can serve up search results (and ads, of course). I think most users would NOT opt-out given the chance to do so (if it meant harming their search quality). Related quote from Matt Cutts' blog: "It’s a long…
Let me give you just two possible scenarios, there are plenty more: - An insurance company somehow gets their hands on search data and finds a way to associate that with their customers, figures out who is probably about to apply for coverage for a bunch of expensive treatments and cancels their insurance before they can make the claim for some trumped up reason. - A political party gets their hands on this informati…
You mean like the AOL search data leak? I never read anything about insurance companies misappropriating the data in this manner. So I'd say its more of a long shot.
Same with political parties... again, never read anything like that.
Not to say that it hasn't happened, I'd be curious if anyone has any information to show if it has?