y There is an interesting discussion of this on Google+ architect +Yonatan Zunger's page at https://plus.google.com/u/0/103389452828130864950/posts/YJbzDptWGQt???Jon Pincus+343 Reply Interesting quote from Bradley Horowitz in Mashable that the new account naming option is intended for ???people who have earned credit in other social systems and want to redeem that credit