> https://datatracker.ietf.org/doc/html/draft-bhutton-json-sch...
That's an expired draft on the informational track. Informational track isn't supposed to be authoritative; drafts even less, let alone expired drafts. Having submitted an Internet-Draft to IETF is an indicator of seriousness, not authority, unless you get it approved on the standards track.
They also publish on IETF infrastructure. Example: https://datatracker.ietf.org/doc/html/draft-bhutton-json-sch...
Ben Hutton who is the author of the blog post is also the editor of the latest publlished IETF drafts. https://datatracker.ietf.org/person/[email protected]
Do you need some more authoritative source?