Umm, +m? And sure you can hold actual discussions,
it's just all
moderated through the Chair. I generally find, if anything, that the
meetings are more effective and efficient.
Do you know how long that would take? The chair having to either
forward every message or voice and unvoice people constantly would add
several seconds of delay to every single message. And there's a good
chance someone will have already said what you wanted to say by the
time the chair gets to you. It's not at all practical to have a proper
discussion between a large group of people in real time online.