HappyFakeBoulder (HFB) is an old Repl.it Discord member who left for unknown reasons. He can still be found lurking in Repl Talk and the Feedback and Bug boards. His favourite programming language was Python.
He used to be a very active member on Scratch as well, where he created the character TegrEmperor. This character is in his profile picture.
He left the server at the very beginning of 2019, shortly after midnight on January 1st. In weeks leading up to this event, he repeatedly posted following:
"at the current temporal position, my presence within this system shall cease"