I'm reading that Google chose XMPP to their Google Talk product, then later decided to drop the support of Google Talk in favor of Google Hangouts that wasn't using XMPP. This affected Google Talk users who were using 3rd party clients to use Google Talk as they were forced to start using bloated Google Hangouts. But how did all this affect people using XMPP protocol for other than Google Talk?
I'm also seeing potential for growth here for services using activitypub, mainly for the microblogging service Mastodon, as that's apparently a similar platform to Threads, or the other new player BlueSky, which also is going to use activitypub protocol.
I'm not a microblogger, but I'm seeing and clicking links to interesting tweets on chatrooms and websites I visit, and if they are going to be appearing through threads or bluesky in the future, and I am able to view them without having to access a bloated threads or bluesky app/website I see it as a good thing. If they one day defederate from mastodon instances for example and I can't view them from the outside anymore, it sounds like it's what happened with Google, then it's just back to where it was before they came along, unless the whole show managed to draw people from mastodon (mostly) to threads/bluesky which I doubt.