That was my understanding as well. From the bottom of the knowledgebase page;
"(Database contains 124,898 records. Last updated : 8/13/2013 2:10 AM)"
If that is accurate then there's over 3 years' worth of posts missing. To be fair, it's a big ask for a single person to maintain such a thing and Jerry went far and above what could have been reasonably expected. IMO you need a team for such projects so that as people naturally lose interest (or their available time) then others can come in to take up the slack whilst still having continuity through the other team members.