Private rooms are useful for conversation between operators, for conducting private conversations with friends, or whatever other reason you'd like.
To make a room private:
- Create a normal room.
- Join and make yourself a founder in the chatroom settings.
- Open the chatroom settings again and click "Guests".
- Unclick "default".
- Unclick "can join".
You can also stop your chatroom from showing up on the active chats list, to do this go to the General Tab and select "Unlisted". This will make your room private. To allow people to join, promote them to members or higher.