OK, and what if I want to find someone I met ten years ago, and I have no idea what their real name is because no one ever uses it? A ton of my friends in high school and college went by nicknames the entire time anyone ever interacted with them. I had a good friend in college whom /everyone/ called "C.C." (as in, "see see"): her name was "Corrine", but I don't really know how to spell it and I'm one of the few people who ever actually bothered to learn it.