The etiquette of multi-user + AI conversations is unclear.
In a conversation with one user and an AI it's obvious the turns should ping back and forth.
That is, there should be precisely one AI message after each human message.
With multiple people and an AI that's way less clear when the AI should speak.
Should it speak after every user's message?
Should it speak only when it thinks it has something particularly important to say?
Should it speak only when spoken to?