I met Daniel (creator of KSON) a while ago and have helped out with a few things, working towards this first beta release. I don't want to hijack the comments section, but there's an article I just finished writing that might shed a bit of context into why KSON exists. It's called "Configuration files are user interfaces" (see https://ochagavia.nl/blog/configuration-files-are-user-inter...). Hope it helps folks understand where KSON is coming from!

(Update: my article eventually made it to the frontpage and stayed there for a good time, so there's interesting discussion there that people here might want to check out. See https://news.ycombinator.com/item?id=45291858.)