[nijave]

I agree with the sentiment, but in practice there are plenty of times where it's best to limit the audience. Posting in a public channel with more than a handful of people can lead to multithreaded discussions spiralling in various directions that aren't relevant to the original post.

It can also lead to issues when members of the chat have varying degrees of context. Shared understanding is ideal, but it's impractical for everyone to be aware of everything so there's a balance to strike.

Public chats are somewhere between the extreme of broadcasting everything to everyone and talking only in private chats. There's definitely a lot of middle ground.