Anyone ever feel kind of weird when someone from school friends you on Facebook? Not that I dislike them . . I'm good friends with them .. it's just that I suddenly remember my page is plastered with pictures of me dressed like a girl . . . and they might not understand or would misinterpret XD
I'm too lazy (and I guess I don't care enough) to set them so only certain people can see 'em .. XD
That's a big part of why I don't have a Facebook... it's not that I have anything to hide per se, but the notion of letting acquaintances know who all my friends are, what I'm doing, etc weirds me out. And I'm also too lazy to carefully set permissions.
For me, people are either "in" or "out"... if they're "in", then I trust them implicitly. But if they're "out", then I have trouble dealing with them on any level other than acquaintanceship unless they manage to sneak "in" while I'm not looking.
(Problem is, I would also have trouble saying "no" to Facebook requests because of the harsh rejection it implies.)