The line comes from Gabe Newell's recorded messages for Valve, where he famously introduced commentary modes saying "Hi, I'm Gabe Newell" and closed with thanks and have fun. Newell, who co-founded Valve in 1996 and led Half-Life, Portal, and Steam, became a meme figure in PC gaming culture known affectionately as Gaben. Clips of his voice spread widely on forums, YouTube, and soundboards, with this closing line becoming shorthand for any Valve-related joke or tribute.