The whole purpose of FourSquare and Facebook is to show off information about yourself to other people. You sign up for FourSquare because you want to tell peop

The whole purpose of FourSquare and Facebook is to show off information about yourself to other people. You sign up for FourSquare because you want to tell people where you are. You want other people to know where you are. You sign up for Facebook so you can show other people your photos and see other people's photos. You can talk to them, interact, and share your beliefs. Both services make it possible to limit who this information is shared with. Saying "it's confusing" is a pretty poor argument as to why that makes these things creepy or dangerous. Most people WANT this information to be public. That's why they signed up for these services in the first place. Personally, I feel MUCH safer that people know where I am and what I'm doing. If I ever go missing, there will be a solid documented trail of where I've been up until I go missing.