Earlier quoted context omitted.
Actually the real name requirement and the fact that anyone could easily find me is what kept me off Facebook, so I don't consider it a killer feature at all. If you know my real name it is easy enough to find me with some additional information on google and get a work email + current office phone number, I don't feel like sharing more than that with random strangers anyways.
Yes, it's a sentiment you share with many here on HN, I'm sure. But Facebook doesn't address our needs primarily; it addresses the networking needs of the average person, which may add up to half the global population or more by the time they are done. Who can at any time reach out to another average person on the other side of the globe, be it acquaintance or stranger, and discuss matters of mutual interest, without…
Then build a system that supports both. Let people opt-in to a lookup directory (phone-book), but make it anonymous by default.