A friend of mine is on it all the time. I asked her why, and her response was to stay in touch. When asked, she couldn't even remember the last time she has spoken with one of her sisters. I get riled up when people use it as the be all and end all of communication. I have actually stopped patronizing a LQS because they only way they now communicate events is on FB. I asked about people that didn't use it and the response was that people should get "with it" and sign up. Much like twitter, I just don't get the point. If I want to talk to someone, I will call them. I will send an email. And, believe it or not, I still send real live actual letters via snail mail!!