The SDK release and the MvM update were done by Jill as mere distractions to divert attention away from the growing bring back quickplay sentiment, his ego is simply too big to admit that he was wrong
N-no I'm not crazy

>>530126897
It's probably got something to do with him witnessing the dark world and it relating to the disappearance of Dess or even some other people, maybe even kids. He probably tried to convince the whole town and everyone just sees him as a nut, but he's been trying to prove it for awhile now... Hence the corkboard in his basement.