Other than his name and the fact he makes Touhou, there are only three things I know about ZUN: 1. He wears flatcaps 2. He drinks beer 3. He's Japanese (allegedly) I can proudly say that I now know _four_ things about ZUN.
He loves beer so much that he made his own brews of beer called Cho Zun Beer under the brand Baird Beer. He also made a character for the Akiba beer fair name Beerko.