Agreed. Lack of comments and lack of proper schema enforcement makes JSON a junk pile of a data format.
Definitely not an improvement over XML. Hopefully the next popular standard data format will learn from the past and take the best of previous attempts.
JSON itself (rfc 8259) has no schema, nor any mention of it. There are several additional RFCs that allow to add schema or other semantics or limitations, though. But JSON has no schemas.
