Talk:Kyon/@comment-27047411-20170325094750/@comment-3047173-20181114010024

"John Smith" is a standard alternative name in any situation, not just in time travelling, and certainly not just in Doctor Who. People who want to remain anonymous tend to use common names like "Smith" and "Jones". "Smith" is the most common English last name and "John" is the most common English first name, so "John Smith" is often used by people who don't care if the people around them know they're hiding their real identity, since "John Smith" is the most obvious pseudonym possible.