It doesn't change the fact that if someone were to do that, it wouldn't be supported by anyone let alone the main bluesky firehose. I think it's pretty disingenuous to just say "You can do it" when what your suggesting is so far off the intended usage of the Protocol that it might as well be a brand new implementation. As a matter of fact, people DO already do this. they use ActivityPub and talk to bluesky using a bridge.

The core of the issue is, Bluesky's current model is unsustainable. The cost of running the main relay is going to keep rising. The barrier to discovery keeps getting higher and higher. It might cost 150$/month now to mirror the relay, but what's going to happen when it's 1000$?