You might want to read it. :-) The problem has mostly been that nobody's come up with a better JSON representation than one in a April 1st XEP (and they have been proposed - as ralphm says, they're mostly XML-with-curly-brackets, which makes them have the disadvantages of both).

On the other hand, both stanza.io and XMPP-FTW both use the same fixed-format (ie, inextensible) JSON format for XMPP just fine. They can do this because they drop unknown namespaces and don't intend to provide round-trip conversions, etc. So if you're after a JSON "interface" to XMPP, there is one, and it's pretty good.

Worth a look.

> NOTICE: This document is Humorous. It MAY provide amusement but SHOULD NOT be taken seriously.

EDIT: Also the X in XMPP stands for eXtensible not XML