For anyone considering Bluesky, there is a side-by-side-by side presentation of terms of service for Twitter, Bluesky and Mastodon here:
“When you post on Twitter(1) or Bluesky(2) you grant them a broad perpetual license to use, modify, and sublicense your content. You effectively make them co-owners of your content. They can mine it and monetize it. They can even sell it.”
So in this regard, Bluesky is no better than Twitter.