@kev I mean here on #Mastodon. What I'm saying is that I don't think we have the feature like you suggest. On #Twitter you can make a public post and restrict who can reply to it. On Mastodon you can only limit who can **see** the post AFAIK.

@stevenroose ohhh ok. Yeah, but if only certain people can see the post, only they can reply.

@kev Yeah but it's a different use case. On big platforms like Twitter, when a few people have a conversation --that they want to be public-- they get overloaded by trolls. So this feature is actually useful IMO.
Twitter has become a platform for famous people to challenge each other in the face of the public.

Of course you can get similar results to ask your clients to hide all posts from people you're not connected with by degree 2 or 3 or so.