What INTERESTS/ATTRACTS you before responding on a certain discussion?

I really don't understand it either! And your own discussion is a great example of this. Here, you're posing a perfectly legitimate and interesting question..And it's been 9 hours since you first posted it, and not one person has responded (at least as I write this - because I found your discussion on the 'no responses' list). I think a lot of people respond only to the discussions on the 'top' lists, and it has a snowball effect: as the discussion first starts to get even a little bit popular, I think at that point everyone sees it on the "today's top discussions" list and freaks out and decides to respond to it. That's the best theory I've come up with!