This just reads like not a response to the problem, but instead a description of technical implementations.
Concretely, nobody is going to subscribe to anything else in bsky but the default stack, anything else is unlikely to ever gain much adoption, and thus federation is basically meaningless and a technical implementation detail for how they wanted to manage their stuff.
Concretely, nobody is going to subscribe to anything else in bsky but the default stack, anything else is unlikely to ever gain much adoption, and thus federation is basically meaningless and a technical implementation detail for how they wanted to manage their stuff.