When the TV news or a newspaper reports a story they very often have posts from the persons facebook. Everyone knows to go to facebook to get useful information about people. We all use it as our own little spy tool at times.
some say "I don't post anything private".
Ever post anything like - "We are in the smokies having a great time"? Well, don't be surprised if your house gets broken into while your having a great time. My neighbors broke into our house when I was a kid.
My brother broke into our other neighbors house when he was little. Note to the neighbors - never make a habit of giving a little fat 5 y.o. fudge sicles and then leave on vacation. That little fatty now has a habit and he will throw a brick through your window to get the fudge
Which one of your friends is gonna come break into your house? I wouldnt add anyone as my friend that was gonna come rob me. I'm not one of those people that just add anyone, my friends are actually my real friends, and no one can see my profile that I havent added, I know that for a fact. So once again, use your head and youll be fine. I'm not flaming you, thats a very good point, but the problem there is people inviting everyone under the sun to look at their profile, not FB.
And like I said before I primarily use facebook for sharing music, and I dont think you can do that on twitter. 
