Here's the link to the original.
Just going to quote my favorite part:
There are a lot of pieces of D&D that a veteran gamer doesn't need, but a newcomer, casual gamer, or DM short on time finds critical. Here are two specific examples.
Adventure Design Guidelines: Stuff such as XP budgets, treasure tables, encounter charts, and so on are there to make it easier to create adventures and build your campaign. If you are a veteran DM, it's quite likely you won't use any of this stuff.
I'll let you in on a secret. I DM'ed a year-long Eberron campaign in 3E and I never once used the rules for treasure or wealth by level. I gave out stuff that seemed cool and appropriate, and the game worked fine. I used the challenge rating system as a starting point, but modified stuff to fit my group.
Here's some cake. Maybe later, we can eat it too ;)