God I hope this shitty project dies the death it deserves. It tries to make JSON into YAML in many ways by adding extremely unnecessary shit to the syntax that will unnecessarily slow JSON parsing to a fucking crawl.
Of course, this came from the web community, the rulers of cluelessness. It absolutely blows my mind how stupid this entire project is. How much it shows a complete and utter lack of understanding of the core reasons and design principles of JSON in the first place. JSON is for the most efficient structured data transfer possible, period. That is the reason JSON is the lingua-franca of all things on the Web these days. It is the reason it destroyed XML despite all the momentum it had. It is the reason that JSON tags are built into modern languages like Go and Rust.
Breaking all of that just for your shitty comments and trailing commas just shows what a fucking moron you are for trying to use JSON in that way in the first place. It demonstrates a fundamental lack of clue, of any actual sanity, and a solid reason that web developers should never allowed anywhere enterprise data systems and protocols.