I guess its hard for me to care more, because its not an issue. I befriended my boss of fb before he became my boss, and I didn't bother changing anything after that happened. Nor do I do anything worthy of censorship. I basically maintain fb so my mom can occassionally see pictures of shit john and I do. Though of course there are other things there as well. Social networking is only dangerous if you use it.
Its also not like I have some kind of luxury to get fired and find some dream job. I'd have a rather difficult time I'm sure finding new work. But I'm just not the personality type to try to act like a different person in order to gain employment.