Muppetfan was last in contact with us over at the Arthur Wiki. I already know why he left us over at wikia, but out of respect for Muppetfan I will not reveal that to anyone no matter how many times they ask me. As for why he left this site, we may never know, but as Magnezonomon said, other commitments. The real question is what do we do with a site that doesn't have any administrative staff?