We're planning on adding some moderation options, but we also trust our users. You get to decide who to invite to a conversation, so presumably you won't invite

We're planning on adding some moderation options, but we also trust our users. You get to decide who to invite to a conversation, so presumably you won't invite someone who is going to make a joke out of a serious discussion. If people don't live up to our expectations, we do have some creative solutions for encouraging people to behave.