The 4E category was not just created for those who WANT to discuss 4E, it was also created for those who DON'T want to discuss it. It's easier to not only find, but separate from other categories, as well. When enough people start discussing "basketweaving skill in D&D" on a week-in, week-out basis, it'll probably get its own topic, to help discussers as well as detractors.
For something people don't want to discuss, 4E sure gets a lot of discussion time. Like I said earlier, it's a self-fulfilling prophecy...