What?
I think what Cammy is trying to say is that there is a potential of new posts with active threads getting burried/pushed off of the "Top 10" list by people responding to the old, random threads.
I to can see how this may kill a post that is not being added to rapidly, or hinder help asked for or given. This would force ppl. to look into the individual forums to find what they need.
Maybe if there was a way for A.ORG to know the difference between a reply added through normal means and a comment in answer to the "Random Thread" of the day...