[yoshuaw]

Aren't the entities who manage relays the ones who broker access to the network? E.g. if you subscribe to a relay, you must also subscribe to their moderation decisions.

Say if Bluesky (the company) bans someone, that person could still have the keys to their data, but their feeds will no longer be "re-broadcast" by that company's servers - right?

[neko-moe]

Relays aren't really user-facing, so most relay operators would probably only censor a user on the relay if there is some legal or network reason to do so, say content illegal in their jurisdiction or excessive spam.

If an app is concerned that a relay is censoring some user that they care about, the easiest solution is just to host their own relay. It's probably cheaper to operate than their app is. But if they really wanted to, they could listen to multiple relays to "cover the gap" or just manually listen to the event stream from specific users' PDSs directly whenever they notice censorship (effectively operating a partial relay in addition to listening to a full but censored one). But, again, in reality they'd just host their own relay and not bother complicating things.

The hardest problem of relays censoring content is to notice it happening, but once you notice you can easily verify it and switch to a different relay.