facebook was created for ulterior motives and malintent, and this was reflected in its internal workings from day one. I was one of those people on facebook relatively early, and there was a lot of “screw the users, we own your data and we do what we want with it” kind of stuff going on, even more so than today, and I was very put off. I realized that is embedded into its cooperate culture and will not likely change until they stop being successful. So I stopped posting on facebook, unless it’s something important, like social protests that MM mentioned, eventhen I’ve posted or shared stuff on fb less than 10 times in the past year.
Facebook has admitted that it was doing experiments trying to affect user’s moods by only showing them upbeat or depressing posts, just to see how their posting behavior would change. Dick move, what no one is surprise it would do so.
I mostly use google plus now. Though I haven’t had a lot of success getting most of my Taiwanese friends to use it regularly. The difference I think is games. When google plus also had its own game section, I actually got a couple of them to use google plus daily.