I don't have Facebook, but for me it's not a matter of "Facebook is eeeeevil! Stay away from the evil!" It just doesn't fit my use case. My father uses it to stay in touch with people across the country, some of my friends at church use it to keep updated on each other's lives outside church, but... it just doesn't do anything I need done. It's just one of those things that is there, something I may use someday if I ever need it, but probably won't ever need it.
To me Facebook is like Pandora or Spotify - lots of people use it but I have Isaac Radio (my really big, very diverse music collection) on my phone so I've never needed it.
I always refused to have a facebook until my wife left. A woman at work set it for me and proceeded to friend every 20 something female she could find, to make my wife jealous. Now I just use it to spy on people in my county.
Sounds like something I heard about an army guy who was stationed in the Marshall Islands. Six months after he was sent there his girlfriend sent him a letter that she was going with his best friend, and would he please send her picture back.
He started collecting all the pictures of women he could find - copies of other guys' pictures of their girlfriends, mothers, including a few snapshots of topless natives - and sent them all to her with a note: "Sorry, I'm not sure which girlfriend you are. If your picture is here, please pick it out and send the rest back."