While you might feel pleasantly smug if you should find all of your ingredients for free in the trash, it's not required, nor necessarily even helpful! What this cookbook does have is a sense of humor: About itself, about punk, and about food memes.
At the same time you could literally just make the recipes like normal, even if you didn't read the jokes or look at the photos. It's just character in the background. "What does Joshua think Henry Rollins should eat?" "If Blondie ate this, she'd look young forever!"
The book is, of course, also peppered (food pun!) with soundtracks and quotes from punks about food, both from the press and the underground and the comically absurd!