Of course he comes across as condescending. He dismisses pretty much every opinion contrary to his, and while he created 1 good game in his career, I personally wouldn't trust him when it comes to knowing good engineering principles. He's creating a language that brings nothing new to game development, while dissing pretty much everything else that has been done. He's also made an ass of himself at least as many times as Phil Fish.
Contrast to someone like John Carmack, who is a legend, has achieved more in his career than most people ever will (some of the first FPS games, if not the first, pioneered so much technology, is launching rockets into space!), yet is still open minded enough to try new things, like rewriting some of his old games in Haskell and applying FP principles to game design. Oh, and John Carmack is humble as hell, considering what he's done.
Contrast to someone like John Carmack, who is a legend, has achieved more in his career than most people ever will (some of the first FPS games, if not the first, pioneered so much technology, is launching rockets into space!), yet is still open minded enough to try new things, like rewriting some of his old games in Haskell and applying FP principles to game design. Oh, and John Carmack is humble as hell, considering what he's done.