What happened to Ivachon?

Has anyone else noticed that it has been more than a month since Ivachon stopped posting in the Technical Q&A? Number 5 on the high scorers list still. I would suspect that this was intentional -- looking at Ivachon's statistics, it seems that providing exactly 500 answers was some kind of goal that, once met, need not be exceeded. The accepted answer rate of 50% is incredible, and shows the quality of answers being provided.