I agree that what we put online should be conscious. That said, people have intentionally set up whatever is automatically publishing to Facebook. I have a Facebook account and actually use it for a active group (works like a forum, kind of like Slashdot), and to look at pictures of friends' kids. Facebook does not know my real email address, the contents of my address book, my phone number, or where I'm eating lunch.
I'm not sure why anyone thinks FB should know where you are, but there are people who enjoy these features (bless their hearts). Of course, everyone else blocks these people...