Sometimes its nice to allow the community to regulate itself rather than just have some riot police bring down the hammer on everyone.
One cool feature that would be nice to implement is a fade-out system of comments that are low ranked, and a highlight system of the best comments. That makes it easier to get through really long threads when you don't necessarily care about what everyone says.
For example, in the far cry 2 thread, some comments are more useful and interesting than others in describing the game. It would be neat to have them stand out a little more (a'la ebay) so you can automatically catch on to them as you browse. It would be great for people who have to catch up on a thread they didn't start out in.