[foresto]

Google Talk support for XMPP: 2005-2013

Facebook Messenger support for XMPP: 2010-2015

Jabber.org support for new accounts: 1999-2013

First-class integration with two of the world's largest social networks put XMPP in practically everyone's hands for a time, but when all the major hosts left, network discoverability and typical account longevity dropped drastically. The landscape is bleak today.

And since then, our collective needs and expectations of a chat platform have expanded. XEPs have been developed to bolt much of that functionality onto the base protocol, but that has led to a fragmentation problem on top of the bleak server landscape.

This unfortunate situation might be navigable by a typical HN user, and perhaps we could guide a few friends and family members and promise to keep a server running for them, but I think the chances of most people succeeding with it are pretty slim today.

[seba_dos1]

Facebook never had "first-class integration". It was just a client bridge - you could login into Facebook Chat using your XMPP client, but it was a completely separate network, unlike Google Talk which was an actual federating XMPP server.

[foresto]

Fair enough. (Although all the XMPP clients that I used supported multiple accounts, so it made little difference from where I was standing.)

In any case, it contributed significantly to XMPP's reach and utility, and it's gone now.