But that's not a problem with JSON-the-serialization; that just means JSON begs to be extended with a rich schema definition language. It's kind of like saying

But that's not a problem with JSON-the-serialization; that just means JSON begs to be extended with a rich schema definition language. It's kind of like saying "language X sucks because it doesn't have an automatic build tool; use language Y instead". You just need a build tool for X, not a new language.