@shafik @regehr I have been telling people just how bad this is for a long time, specifically my family members and close friends and, well, no one seems to care. Because they are addicted to convenience.
They will get ads directly targeted at them in ways that really creeps them out. I tell them how it works and... they don't change at all. They complain about how creepy it is but change nothing in their behaviour and say nothing to those taking and selling their info like this.
I'm at the point where I'm ready to become a real asshole about it because frankly, nothing else seems to work. (Being an asshole won't either, but maybe I'll get somebody riled up.) It's either they don't care or they just think that having a computer do cool stuff they saw in science fiction as a kid makes everything worthwhile.
It's very frustrating and may be why no one really contacts me anymore.