I am a sys admin for an isp. We host a few sites that use dcforum, as for our site I only use it for communication between employees regarding technical issues. Our site is not accessible from outside of our network. It's not much to look at though as I have only made visual modifications to the default layout.
Just a friendly poke from the ole cattle prod! I actually use DCForum from www.dcscripts.com. They both have virtually the same features and cost. I have thus far been unable to find any suitable forum software built using Java.
Maybe I'm asking for trouble since Paul gets to critique my assignments but I think its kind of ironic that a site focusing on Java technology uses Perl to drive the Saloon. Obviously from a cost/functionality standpoint a canned program makes sense but you would think with the amount of class that frequent this place someone would develop something.