Well, at the bottom is Jack's name and it says "This is my first attempt to make a website (with Sinatra on Ruby)" so maybe that would've been the official forum, instead of "forum.pixbits.com" (this address). Two things that caught my eye are a page saying that Jack started on OpenMOM—a remake of "Master of Magic"— on March of 2011 by
himself and "Impossible! Language", which appears to be a reference of sorts for what seem to be operations, commands, etc. Also, the "titles" (ex: I'm on "Junk Jack Forum • Post a reply") of the site and "Files" pages read "jacoposantoni.com - Website" and "jacoposantoni.com - Files," and if you type
http://jacoposantoni.com on your address bar, it is the
exact same site, but the links aren't on
forums.pixbits.com, but on
jacoposantoni.com, which are still the same exact pages, but with a different URL.
So, now we see there was more Pixbits did—well, as far as I know, Jack, but it was still "
Pixbits Forum"—before Junk Jack. Maybe the site was moved to a different address and was changed to "Junk Jack Forum" with the start of Junk Jack—as the last activity was on, of course, March 4, 2011 and Pixbits joined this forum on October 8 of that same year.