I'm not sure if I buy the whole #meta#facebook killed #xmpp. I've seen several services, with large user bases, using xmpp, or some abstraction of the same protocol. I don't think the concerns are invalid, I just think there's a bit more to it.
@aboxofsox do they federate? No. The potential for cross network communication, which is what XMPP was designed for, has completely disappeared from the general public consciousness. See the parallel with ActivityPub yet? You're just reinforcing the point here.
@oblomov I don't think there's anything to reinforce here. The argument being played out is "Meta killed XMPP". It's not as simple as it sounds. Maybe "Meta diluted the potential of XMPP" would be easier to digest. Only siths deal in absolutes.
@aboxofsox are you seriously trying to pull this kind of semantic deflection here? XMPP was purported to be the open protocol that would allow interoperability of the mess of clients and platforms for instant messaging. When Facebook and Google adopted it βwith federation!β it was declared a huge win because finally you could communicate with people on a different major service thanks to the protocol. Is that what you're seeing now? Do I need to spell out the parallels with ActivityPub?