Interesting take. Obviously for Bitcoin as a hard money maximum decentralisation is very important.
But for social media is maximum decentralisation that important? What people want (or perhaps what people should want) is to have sovereignty over their data and in doing so eliminate bad incentivises for companies to keep people using the platform by whatever means necessary; even if it fractures our collective agreement on what is real and what is not.
Farcaster claims to be “sufficiently decentralised” (I haven’t used Farcaster btw). Mastadon is less decentralised than Nostr through it’s instances, but much more than Twitter or Threads Couldn’t that level of decentralisation be enough to achieve the goal?