* It's hard to even parse, XMPP uses an uninterrupted XML stream.
* The contents are often baroque and complex
* Standards are a mess, and stuff that should be in core isn't
* Data loss is possible
* Protocol wasn't made for mobile devices
* Multiple devices are terribly supported
* Data loss is possible
From my attempts long ago, and other testimonials, writing an XMPP client is a full time job of solving weird problems that shouldn't exist in something better designed.
https://news.ycombinator.com/item?id=9772968
https://news.ycombinator.com/item?id=31133082 (article and discussion)
But TL;DR:
* It's hard to even parse, XMPP uses an uninterrupted XML stream. * The contents are often baroque and complex * Standards are a mess, and stuff that should be in core isn't * Data loss is possible * Protocol wasn't made for mobile devices * Multiple devices are terribly supported * Data loss is possible
From my attempts long ago, and other testimonials, writing an XMPP client is a full time job of solving weird problems that shouldn't exist in something better designed.