I have an idea about having a family name on your account that introduces all of your characters. For example i would still keep my wizard name but above my wizard name there would be my family name. So instead of having someone to add your character. They can add your account as friend so you dont have to worry about not having the person as friend on your other characters.there are also too many people with the same wizard name. So people will also recognize you better with a family name.