What do you mean? I did some quick googling and am unsure what you are implying here.
There’s an option for setting the visibility of your posts: https://bsky.app/profile/bsky.app/post/3kgbz6tc6gl24
alt Hacker News
There’s an option for setting the visibility of your posts: https://bsky.app/profile/bsky.app/post/3kgbz6tc6gl24