I wouldn't read much into the downvote. People tend to get tired of what has been coloquially termed the "middlebrow dismissal" which plagues HN a bit. No doubt your comment was misinterpreted as such.

If we're lucky, we'll see some open source on this, but probably only in as far as it directly makes the game more fun. Or harder. You can likely mod the game quite a bit though, as the Content folder is full of plain text code. (I'm assuming .cso files are compiled glsl code?)

And thanks for the reminder for Quadrilateral Cowboy; I have no idea why I don't have this in my library yet. I don't think I've heard anything negative about it from anyone, and it looks like an absolute blast!