Relevant enough, the author also references recent developments around ActivityPub, the Fediverse, and Lemmy:

As we discussed last year, there are real signs of life for the decentralization of social media thanks to the emergence of ActivityPub and the Fediverse. Just as I was putting finishing touches on my slide deck, there was yet another meltdown in the world of centralized platforms, with the CEO of Reddit deciding that sudden changes to API pricing – to the point that lots of third-party applications become economically unsustainable – was such a good idea at Twitter that he would bring the same approach to Reddit.

The response from volunteer moderators at Reddit – the unpaid community members who make the platform valuable to users – has been swift and, in some cases, hilarious. But the aspect of this story that really caught my eye was the rapid rise of ActivityPub-powered Reddit alternatives Kbin and Lemmy.