You still seem to confound skinniness and willpower and again, the second link I showed someone well into 40+ BMI changing. Secondly, this article has a few issues as well. The participants are older, which we know is difficult to lose weight at (which does support your claim, but not for the same reasons). The article also does not appear to compare the participant's appetite increases to those of "healthy" individuals. What does an "8" represent, and would any person show the same signs?

I will assume that formerly obese people have higher cravings. No doubt a former heroin addict has cravings. I will accept that it is harder for these individuals. But again, that does not mean you shrug your shoulders and say "that's the way it is".