The messages I get from non-friends are usually from old friends asking if I'm the correct rm999 (well, my real name). I think these messages do have a lot of u

The messages I get from non-friends are usually from old friends asking if I'm the correct rm999 (well, my real name). I think these messages do have a lot of utility, but I would never pay to send them. They also provide value to facebook by increasing the size of their social network. Uptown also brought up the semi-contrived (but still excellent) example of a found wallet, which is another case where the value to the sender is low but the global utility is high. Anyway, I get virtually zero e-mail spam and my e-mail address has been public for eight years. I don't see why facebook wants to shake things up. I consider spam a mostly solved problem.