Search last names

YES! I have a weekly post which sometimes makes people submit last names from WoP users, but I have to of course check if they really are on WoP, and I keep having to ask for their first names

it would also be really useful for Backstory Team members who would see easily all the users with a specific (prohibited) name :p

Please make this finally happen! I would love to have this kind of possibility and I think it would make a lot of things easier. For example, when you want to create a new account with a surname/last name no one else has yet. Then you can search first through all the accounts and then see how often one name is already in use.