When you say 'dirtbag mountaineer diet', do you mean it's the diet you observe when you're climbing a multi-day mountain? Oats, eggs, PB, and SGP is what you take in your bag, to cook, when you are climbing?
Not necessarily true. Split peas, peanut butter, rice, oats, chocolate chips and powdered milk are awesome food, whether on the ground or on the wall. They don't freeze in winter, they don't go bad when its hot, you don't need to wash your pot with soap, you can soak them for hours so you need only cook them for a few minutes. These make for ideal characteristics when on a multi-day climb. They're also cheap so dirtbags eat that same stuff when they're not on a big climb. Saves a lot of money.
Split peas kick ass indeed! I figured I was the only dirtbag eating them. Never seen anyone else in Canada or US doing it. Did you grow up eating split peas?