[Hoodedcrow]

The answer here would be "there's no such thing as a generic "server" like in ActivityPub because it's split into different components, of which a PDS is only one".

Honestly my main question here is "If you disagree with various ActivityPub instances' defederations, you can get around this by starting your own instance that federates with everything; is there an equivalent for bypassing Bluesky's moderation decisions?"

[master-lincoln]

Use a different appview, not bluesky. Or have your own appView. That is the design of ATProto as far as I understood.