A lot of people dislike it for the privacy nightmare that it is and feel the threat of an EEE attack. This will also probably not be the last time that a big corporation will insert itself in the Fediverse.
However, people also say that it will help get ActivityPub and the Fediverse go more mainstream and say that corporations don't have that much influence on the Fediverse since people are in control of their own servers.
What a lot of posts have in common is that they want some kind of action to be taken, whether it'd be mass defederating from Threads, or accept them in some way that does not harm the Fediverse as much.
Well, either you must use it to talk to yourself or your contacts must all be in a tech bubble. Unless I am terribly mistaken, an arbitrary XMPP client cannot be used to talk to people on the proprietary networks where most of them are these days.
I use it to IM people on http://sine.space among others regularly. Many of whom are completely non-techy. The problem with people pretending that XMPP was embraced extended and extinguished. Is that it was never the case. If Google killed XMPP. Then it must have also killed AOL instant messenger, MSN instant messenger, ICQ, etc. It didn't. But no one uses them anymore hardly either.
The truth of the matter is that no one used Google talk for XMPP. Other than mostly techie people who are already using XMPP. It's base of use definitely increased when people started using Google talk. But only technically. And when Google stop supporting it. It technically went back to normal. Where it is now. The fact is it was good but never popular. And other more featured services replaced it and all the services like it. But it's still exists today quietly. And in a lot of places people would never suspect it still.
Yes I'm all for going after Google for different things. And was definitely a big fan when they implemented it into Google talk. But I think it's importance was definitely overplayed.
An in-law of mine wrote a commercial email consolation web service about a decade ago. Which he eventually sold off or a smart chunk of money. But he implemented an on-site instant messaging capability using XMPP. It was never broadly advertised as such. But you could absolutely connect to it through an XMPP client outside the website. But unfortunately not many of the actual users cared about that beyond the fact that it works for them. However I would not be surprised if many of these customer service on site chat applications etc don't use some level of XMPP. We're just not advertised about it.
I believe XMPP today is an IETF standard. Which anyone can and probably do implement. I remember reading about it having integration with SIP servers etc. unfortunately though it was never one of those sexy exciting things that people really look for. It's why Mastodon etc I haven't really blown up but are still chugging along. Most people only care that the people they want to talk to are there and able to be talked to. Not about how it happens in the background or even what they have to give in exchange for it. And I honestly think it is one of the reasons that Lemmy might actually stand a chance. Reddit by its nature was often rather techy and involved. Growing communities is much different than growing personal walled gardens. And if money does a good job of appealing to those community maintainers. I could see general chatters eventually following. Because no one wants to waste time screaming into an unmoderated void.