Your follow list is public on Twitter as well. But BlueSky being designed to be federated ends up exposing a whole lot of data which should probably be private.

Your follow list is public on Twitter as well. But BlueSky being designed to be federated ends up exposing a whole lot of data which should probably be private. The block issue could probably be resolved by a 3rd party server which could let you still follow users who have blocked you. All this data is publicly available on the api. Obviously they wouldn't see your posts still.