[keithwhor]

If it's not a validator, then what's the value? Why would I use this?

I assume the TJSON libraries throw errors if invalid types or formats are provided --- which is good, but that makes this a validator. Developers have been representing non-standard formats in JSON for years.

Google's response to JSON's limitations was the Protocol Buffer [1], and as I understand it, it's used internally relatively extensively, but there hasn't been much adoption outside of Google. JSON is just the right mix of simple + robust for the majority of use cases.

[1] https://developers.google.com/protocol-buffers/