Anyway I think you a little bit and the others to a greater degree are missing the elephant in the room. Yes all the pro carb studies that get talked about and even "your own" experiences are probably very true. but what you guys and the scientific studies miss is that western society is FAT, every where you look people are overweight or obese. Why is this? (pssst... they all eat high carb diets). somewhere there is a missing link between all the science and what is actually happening.
The other thing you high carb guys on this site miss is marksdailyapple.com has many 100's of thousands of subscribers, why are they all here? What are they looking for? Are they all here for the scientific studies and N=1 opinions getting sprouted in the forums? (nope) Or are they here because they heard somewhere that this shit really works? (you betcha).
To what you said above, you referenced ripped body builders and even tho your probably right about them it doesn't mean much. bodybuilders (and maybe you, I don't know) micro manage the shit outta their diets far more than any normal person would. Yes they might be able to get 100% effectiveness from eating that way. But why should most of us do that when we can get 90% effectiveness outta stocking our fridge with a list of primal foods out of mark's book and eating it when we get hungry.