This is interesting, I think the same to a certain extent happens in ordinary live conversations.
James Harkin: The architecture of chatrooms has no straight lines – how do we improve the quality of online debate? | Comment is free | guardian.co.uk: “Online conversations have a habit of proceeding in peculiar ways. Let’s take the parody here of an online chatroom discussion, penned by Tim Dowling for the Guardian in 2005, and use it as a case study. Anyone who has ever tried to chat with more than one other person on the net will find it familiar, because communication there tends to break down in predictable ways. So why does it happen, and what can it tell us about the architecture of Cyburbia that it does?”