OK, this was a joke, but it certainly could happen. And the point is joining a corporate social media network you relinquish control of your content. They can adjust the knobs that amplify or turn down your engagement, and can even sever your relationship with your audience at will.
Why are people so confident that they will be safe there? Does anyone know who owns #Bluesky?
Maybe a hint is in the name of the VC firm that lead their recent investment round, "Blockchain Capital".