For what it's worth this issue is not as big as people generally make it out to be. Everything doesn't need to support everything for communication to be succes

For what it's worth this issue is not as big as people generally make it out to be. Everything doesn't need to support everything for communication to be successful. The XMPP Standards Foundation publish an annual compliance baseline for different categories of XMPP application. There are also projects such as Snikket (disclaimer: I work on this), which remove the confusion entirely. At the end of the day the solution is not for end users to "use XMPP", but for good products to build on and use XMPP. I wrote on this topic at https://snikket.org/blog/products-vs-protocols/ https://snikket.org/blog/products-vs-protocols/