I loved that comic, and your post led me to believe that XKCD had yet another easter-egg thing and that Randal set up a server for an anonymous chatroom accessi

I loved that comic, and your post led me to believe that XKCD had yet another easter-egg thing and that Randal set up a server for an anonymous chatroom accessible one way or another from this comic page, but after poking around the DOM and checking the image for shady things and so on and so forth, and I didn't find anything. The XKCD foras don't seem to know anything I don't, either. I invite you to either clarify this title ("XKCD jokes about undocumented features", perhaps) or to prove me wrong.