User 666 on Youtube

So I was looking up spooky and creepy videos like I always do and found this really interesting story. It's about an old youtube account called user 666. They say now when you go to the page it will just tell you that it's suspended account. But back when it was active it showed some really creepy and disturbing videos. No one knew who made the channel or where it came from. But there are some theories floating around out there. I am not sure, but it sounded spooky. Here is a fake version of the channel but still spooky either way.

User666 video on youtube

Also I found what looks to be the original user666 or their return?
enter at your own risk. Not sure what is on there but feel free to explore!
Real Username 666 channel on youtube ?