When I get mod points I reset my preferences to -1 Newest First. It's annoying wading through the crap, but I consider it my contribution to the slashdot community. After all, I can only read at level 5, because somebody else has done the same thing.
The biggest pain, actually, is having to reset my preferences so that I am in "moderation mode." What I am suggesting is that slashdot provides a user with multiple preferences settings. I am sure there are other uses for this. What do you think?