I think there's some sort of psychological inadequacy in people who compulsively start threads. They don't have what it takes to join in ongoing discussions in a constructive manner, so they sometimes start several new threads a day.
If you look at their kindergarten report cards, expect to see a check mark at "does not play well with others."
The general practice around here is to start new threads only when you have something new to say or ask on a new subject. Otherwise, post to existing threads. I know an election is coming up, but the number of Bush/Kerry threads is ridiculous. So is the number of copycat threads, like the "arrogant asshole" series.
-Joe Offer-