Whoops, I somehow managed to miss that blacksky.app was only meant for Black folks (I signed up directly on there and don't recall seeing anything about requirements, just a list of domains). They sent me a warning and I followed the migration procedure, but now I can't log in with my new identity (@freakazoid.myatproto.social). So I guess I'm no longer a blacksky.community user.

I'll try again later in case there's some kind of delay. Otherwise, I guess I'll give it another shot in a few months if there's evidence they've improved their reliability.