Forum:Defaultsort real people?

Issue
Adding a category like to a page will sort Michael Yarmush's page under the letter 'Y' instead of 'M'. Whose pages should we sort like this?

Anyone with a last name, including characters

 * -- Anythingspossibleforapossible (talk) 22:12, January 7, 2015 (UTC)

Nobody

 * 5000 Explosions and a Supernova (talk) 02:36, January 7, 2015 (UTC)
 * User:Jushiro971 (talk) 20:34, January 7, 2015 (UTC)