I still don't get what your quarrel is. This is exactly what people have been saying throughout that entire thread.
Yeah, that's exactly what I thought, too. What's the argument here?
Perhaps the problem is that pklopp is unhappy that people can obtain calorie restriction without hunger? There are a lot of stoic people out there who believe that suffering is an important part of weight loss (since it was hedonism and gluttony that caused the problem to begin with, there ought to be some suffering as righteous punishment for their sins, right?). Their worldview is certainly challenged by something like this.
I actually think that an all meat diet would be something I'd more likely do. Meat with both lean and fat. Natural meat is nearly impossible for me to overeat and it leaves me feeling healthy and vibrant. Seemed to work well for
Vilhjalmur Stefansson (who did not do it to lose weight but proved it could be done while maintaining perfect health and not getting scurvy).
In case anyone cares, I have not done the potato diet. I did two full days of it, plus two half days, but that's all. I just wanted to see what it was like to eat such bland food for a whole day. I was glad I did it because it showed me something about food reward and that potatoes are good food to eat so I've decided to put them back into my diet.