Should it geotag your photo with your current location, assuming you have that feature enabled in the camera app?
Should it use your location to contextualize your query for "pizza near me?" If so, does that mean your browsing history has to be redacted so that it isn't possible later to infer your location from your selection of a candidate restaurant?
I think different people will have different opinions about what constitutes a "cumulative location profile." Google's definition makes intuitive sense to me personally but I can see how there might be other points of view on it.
I can understand the public outrage, but on HN it surprises me that almost everyone seems to think this is a clear case of pure evil.