Despite how many people seem to claim that Facebook requires real names, I have numerous people in my list of friends that have never had a real name associated with them; these are not new accounts, nor are they inactive ones: these are real accounts my friends have been using for the last 8 years on the service. Facebook somehow "gets" this in a way that Google may be trying to "cargo cult" in some way, but if that's the case Google is missing the point and failing at it.