You know where I think to see a difference? If you are off Facebook, you will get an invite from people who want you to be there. If you get an invite on Facebook there is a chance that the one inviting you could not care less about your actual presence.
It’s not an argument against Facebook. It’s not even a reason to leave the network. But it might, at least in part, explain this question that I’ve been pondering the last couple of days:
Why is it so easy not to be on Facebook?
In retrospect…very surprised.