This seems incredibly odd to me. On one hand, they indicate strongly valued privacy with the "no posts about the child" rule; seemingly recognizing the hidden costs of permissive 'oversharing'. But, on the other hand, they place a very high importance on reserving (vanity) domain and user names, securing the right for her to sharecrop out her personal information in as-accurate-a-means as possible; reinforcing the va…
People keep saying facebook will disappear... but maybe it won't? Maybe it will become like email, less used but ever-present.
Surely in the future there will be a better way of differentiating ourselves than "john-doe.com", "johndoe.com", "jdoe.me", etc. And what happens when JohnDoe #1 and John Doe #2 are famous people? Who gets the "verified" badge on social networks? It isn't sustainable, and Facebook and others are bound to change this sooner or later.