Agreed. This reminds me of a related unexpected networking effect. I read a study that hypothesized that internet-enabled chat on mobile phones would distribut

Agreed. This reminds me of a related unexpected networking effect. I read a study that hypothesized that internet-enabled chat on mobile phones would distribute more messages across a more diverse set of one's friends and acquaintances. Instead, the study found the opposite: communication became more concentrated, with a greater proportion of communications going to a smaller subset of people. To analogize, messaging habits became "deeper" not "wider"; more extreme, not more diverse.