I enjoyed the linked list of reasons why real names are often impractical very much. You know, in many places and points at the 20th century in North America many married women retained neither a personal last name nor a personal first name outside of intimate social circles. You will still run into older women who want to be referred to as Mrs. George Pufnstuf by strangers. I don't know if they're on Google +, but they certainly write irritable letters to advice columnists. I'm not defending (or condemning) the practice; I just think it's at least a little wry that many of the people insisting that everyone on earth has their own personal, public last name and first name probably have grandmothers who at some point did not.