In theory AT proto doesn't seem like a bad design. I've read a fair bit of the docs, although mostly skimming. (I've been meaning to read the paper on Merkle Search Trees so I can figure out what exactly is going on with PDSes.)
On the other hand, in practice it seems like the AT proto infrastructure is still very centralized for now. DIDs are excellent in theory, but everyone is using PLC DIDs, which depends on the centralized plc.directory. You can run your own PDSes, but there's only one relay for now (that I am aware of.) I also don't think there is more than one instance of the Bluesky AppView, and the official instance is locked into the Bluesky Moderation Service, which seems to limit the usefulness of some of the censorship resistance of the protocol.
I'm not sure how much of that is social problems rather than technical, but I worry that since Bluesky and AT proto are gaining massive popularity with this status quo (millions of users!) it'll have a problem akin to Matrix.org, where in practice almost everyone is using the same infrastructure anyways.
It's still relatively early days, but millions of people is definitely enough to where you start to hit problems with having everyone under one roof. I really hope we get to see how things play out when more of the network is operated independently.
On the other hand, in practice it seems like the AT proto infrastructure is still very centralized for now. DIDs are excellent in theory, but everyone is using PLC DIDs, which depends on the centralized plc.directory. You can run your own PDSes, but there's only one relay for now (that I am aware of.) I also don't think there is more than one instance of the Bluesky AppView, and the official instance is locked into the Bluesky Moderation Service, which seems to limit the usefulness of some of the censorship resistance of the protocol.
I'm not sure how much of that is social problems rather than technical, but I worry that since Bluesky and AT proto are gaining massive popularity with this status quo (millions of users!) it'll have a problem akin to Matrix.org, where in practice almost everyone is using the same infrastructure anyways.
It's still relatively early days, but millions of people is definitely enough to where you start to hit problems with having everyone under one roof. I really hope we get to see how things play out when more of the network is operated independently.