So weird that no one mentioned https://micro.blog/ Which only after Mastodon was the second platform to adopt ActivityPub.

Very valid points. Medium and Substack will remain popular due to how easy it makes it

It is actively developed. Some forks are Firefish, Foundkey, Sharkey, IceShrimp

How would that work?

There will be two apps built on this framework out by the spring

It’s not factual https://explodingtopics.com/blog/threads-users

That’s nonsense and you know it. Pull up real history of XMPP. XMPP was little known before Google and afterwards. That’s such a piss poor example