[bpatrianakos]

I don't see the benefit. It seems no easier on the eyes than JSON and it's more complex with more syntax rules to learn. I wouldn't recommend this for either humans or machines. HJSON would be my choice for a human readable data notation format.

[veli_joza]

There's also YAML that looks similar to REN, but behaves similar to JSON. There are libraries for all major languages/platforms.