That's just moving from one silo to another though. Users of centralized services don't have much recourse when the company pulls the rug out from under them.
Isn’t the problem profit motive? Wikipedia is a foundation, so it works the same way it always has. We need this for more basic services like messaging and identity
Can you clarify what you mean by a "silo"? Do you mean once you start using Signal you're stuck in Signal, and you can't export all your messages into another app?
Users want centralized services. Syncing across devices and shared history are mandatory features, and are basically impossible to do well in distributed models.