yeah but computers are different, the data doesn't get deleted and or warped like it does with people's brains, it's not paranoia, it's a fact, at least based on what you are claiming, google tracked your voting activity and matched that up to you as a handle, then it gives that information even in image searches ...
pretty interesting, I don't like the fact they didn't tell you or ask in the first place :P that would be inconvenient