You don't? Then you're a way nicer person than me. I, on the other hand, find them amusing as heck and lacking any real basis in fact. If D&D consisted only of combat encounters and if WotC sent the gaming police over to your home to break your kneecaps if you made a single ruling that was not covered in the books, then maybe it would seem like the OP has something of a leg to stand on. But considering that D&D has a whole lot more to it than combat, and also considering that combat in D&D involves so many possible variations and permutations that no book, however comprehensive, can cover every variable, the DM is going to be just as vitally important to 4e as DMs were in any earlier edition. There will be good DMs and bad DMs and people complaining how it's not as good as the good old days and others saying that 4e is the greatest edition of D&D ever. Just as was the case with every edition that has come out. Some things never change.