This article is replete with examples of the weaknesses of a federated system run by people who aren't looking to profit.
> This made me realize how little joy I’ve been getting from being an admin. How I’ve come to resent the work I have volunteered to do. I’ve donated countless hours to running the instance, solving both technical and moderation problems, and I’ve always put the instance above my own needs. But I can’t put the instance above the needs of my family.
> Why Not Transfer to a New Admin?
> Users have put their trust in me with their data. Choosing a new admin would require a massive amount of trust, since they’d have access to over a half decade of user data. Not just data from my local users, but from users they have interacted with.
The ideal inherent in federated systems- "people will use servers run by their anarchist commune's sysadmin" breaks down in real life. Nobody actually has a personal anarchist sysadmin to run their mastodon instance for them. In absence of this, the servers in federated systems are run by strangers on the internet who foolishly volunteer themselves for a huge amount of unpaid work, and who you just have to hope are going to be responsible with user's data.
This is why the anarcho-capitalist philosophy of the blockchain world has been so much more successful. The first thing they figured out was how to reward people running the servers, and how to make it so you don't have to trust them. It's a viable, expanding system, and with improvements to scalability and privacy, it will handle decentralized social media as well.