I have to vociferously disagree here. In the real world, in order for a friend to add me to a group, they have to initiate it through some action: call, write,

I have to vociferously disagree here. In the real world, in order for a friend to add me to a group, they have to initiate it through some action: call, write, speak directly to, etc. It requires some sort of action on my part. If I don't wish to join an evangelical Christian group, I do not have to. On Facebook, I can be added to a group I object to without my approval or knowledge. Removing myself from the group requires the action. I frequently go 4 or 5 weeks without checking Facebook and it's entirely possible that one of my friends (whom are friends, but not close friends) could have added me to some aforementioned group. Facebook seems to want to model real-world relationships, but they don't allow for the way real-world relationships form and act. They want to cut out the inconvenience of us having to approve everything and just have it done automatically for us, which just doesn't work for me.