I've heard that, but I've searched for my name on Facebook and I never find anything about myself. My wife has a Facebook account, she has the app on her phone and tablet, and I've had cause to use it. Like she'll tell me to go into her messages and get a recipe or something. I don't read them, but we don't keep secrets from each other. Anyway, I'll be bored in a car ride and I'll start looking up my coworkers, and laugh at the dumb shit they post (that could identify them/their location to strangers). Once in a while I'll look myself up. I'm not a public figure, per se, but I do have imitators, so if you look my name up, first and last, a couple profiles will come up, but they have nothing to do with me and they don't have any information that matches mine. I don't know if those are the "shadow profiles" people talk about, but they are not a threat to me.