The lack of all these added features is the feature of JSON. Just use Toml or Yaml if you need more features and don't like quotes.<p>Also need to appreciate the immense cost of splintering off yet another data format. The value of common formats is that even if it's not ideal for any of our individual needs, we're at least all using and maintaining the same tools.<p>I think where experiments like this shine is when you're doing some limited scope personal project. Like I'll probably use this for a few days of Advent of Code to see what ideas stick.