Travis Hallenbeck just concluded a web residency [link may hang but it will load] where he spent a month away from social media and tried to reconnect with the old world of just following links around the web and finding stuff. The concepts are discussed in an interview titled A Disillusioned Netizen. Worth a read.
Hallenbeck said that when you stop posting on Facebook they hit you with emails saying "we love you, come back and visit [names of your friends]." Not an exact quote, but yuck.