youtube username 666 is a fascinating creepypasta. back in the 2007 youtube channel named nana uploaded a video called "username: 666" (the link: https://youtu.be/7iFXyLah2oQ) since then it has become a popular creepypasta. we all know that every creepypasta ever written on the internet is fake but this one right here is interesting because the creepypasta behind username 666 is real. we know that because typing username 666's link:youtube.com/666 is used to display "this channel has been terminated" indicating that the channel was once existed on youtube but got terminated by youtube themselves. now this mystery has already been solved by TheTekkitRealm: https://youtu.be/KWgfxIxv-Hs but I felt like youtube's legend has started to deteriorate and now almost no one remembers it anymore. kinda makes me sad though