Martijn Mom just gave me an example of how non-social Facebook is becoming. She posts a Valentine's Day card, somebody shares it (apparently liking the image) but couldn't be bothered to comment on it or even like it. Facebook is increasingly used less for communication and socialising.

John Olinda One of the reasons my wife and I finally got off Facebook. It was hordes of people just churning the same content back up to the surface without actually creating any new interaction.