I found an interesting link, reading Jakko’s paper, to a study by P. Reyes and P. Tchounikine on how to support the emergence of threaded learning conversations through augmenting interactional and sequential coherence.
Browsing the content of the article, I was captured by the interface they designed as a proof of concept. It is a very simple layout which concentrate on the threading of the messages, showing how people replied to which part of the previous message. Overall, it is very simple to have a view on how the messages are concatenated. This reflect on supporting the co-reference of the peers during the conversation.
To me this can be a magnificent tool to support opinion forming and online discussions.