As an example, one situation I see is this: Darth Revan tries his best to come up with interesting new topics for discussion, but a fair number of responses are one-word posts. Revan often ends up having to remind people they should explain the "why" of their answers. One-word replies don't provide much intellectual fodder for discussion.
I'd go on, but I don't want to "dominate" the discussion (Problem #4).
