your home computers would probably not have the reliability or the disk performance required to run it.
73ms
it keeps constantly growing by terabytes and needs to be fast too though. Means you're going to pay more than most private individuals are able to long-term just for the privilege of running that one component.
yeah the DM system is something completely exclusive to their official servers and that they just rolled up without caring at all about trying to keep up the pretense of wanting to build something decentralized.
Your "example of self hosting" is not an example of self hosting the relay, just an appview which is still being fully dependent of other Bluesky services like the relay. It's pretty unlikely that the relay would be at all practical to host on a RPi5. But even if it was the problem still remains that the network is set up in a way where self-hosting it only results in you creating your own separate bubble, not meaningfully participating in the official one.
I also doubt anyone has selfhosted relays long-term since right now there's very little purpose to that and the resource requirements are massive as well as keep growing at a fast pace in terms of the disk space required.
I wouldn't be surprised if he held some share of it but Dorsey probably doesn't have much to do with Bluesky anymore, at least in an official capacity. The more salient point is about not really trusting any single party that asserts centralized control over a platform.