in reality, millions of people use social media. even if your whole life is on there, what are they going to do with it? no one at facebook is going to single you out and spread all your data everywhere, are they? they're trying to make their apps benefit and suit you. people going into hysteria over topics like this is funny.
i really couldnt care less that facebook is telling marketing companies that i like dogs or what my favorite colour is. hardly violating my safety. stop whining.