This is a good article on the complexities and interaction between ActivityPub servers, their existing ToS, and Bluesky.
But as far as Bluesky itself is concerned, the answer is wonderfully simple: it's just public. Full stop. Posting on Bluesky is equivalent (from a privacy perspective) to creating a Wordpress blog. Anyone on the internet can see it, and there's no way to stop them, and that's kind of the point.
I find this refreshing and exciting and I hope it leads to a cambrian explosion of innovation in the social media space. The collective creativity of the world can be brought to bear on the network instead of a small handful of strategists employed by the platform.
But as far as Bluesky itself is concerned, the answer is wonderfully simple: it's just public. Full stop. Posting on Bluesky is equivalent (from a privacy perspective) to creating a Wordpress blog. Anyone on the internet can see it, and there's no way to stop them, and that's kind of the point.
I find this refreshing and exciting and I hope it leads to a cambrian explosion of innovation in the social media space. The collective creativity of the world can be brought to bear on the network instead of a small handful of strategists employed by the platform.