You know, you're probably right. I was one of those FB users who ended up with a large number of connections on FB, and then it felt like a runaway train. I tried to adjust the privacy settings but they seemed to be designed to trip users up every step of the way. Finally last week I deactivated my account. For me it has been wonderful, I don't waste time on long "quick breaks" any more. FB might be our generation's TV - a huge time-sink and a major productivity black hole.