Id second that, my fellow Learned Scribe! I would loved to have seen this project come to light, the thought of huge bound encyclopedias on my shelf had me drooling! Rumor has it that WotC saw the project costing around $1m to get to production. I dont know if they had some bespoke software to deal with the submissions but the format of the documents was somewhat to be desired, there was a lot of garbage that would have needed to be filtered out.
Lord Rad
"What? No, I wasn't reading your module. I was just looking at the pictures"