RE Google: I don't see the point in dropping it completely, but I do think that it should not be as big as it is, and that it could use more competition in certain fields.
As good as their services are, the alternatives are not necessarily worse, especially when they are paid services. And I think they are worth checking out.
I'd keep e-mail at my own domain, so I'm independent of the service. (You can do that with G-Mail too, I think, at least when you pay)
Giving them so much personal info may be fine today, while more or less sane, normal people are in control of it. This collected data won't disappear, though. You don't know which one of the data-points could identify you as "undesirable person" in 20 years. Which false-positive conclusions about you it may trigger at some point because of your location-data.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.