This article simply states that chemicals in the body seem to cause you to be hungry and sated via a feedback mechanism which is supposed to regulate itself.
It does not say that starving yourself causes the feedback mechanism to fail and instead make you unstoppably hungry. What should happen is starving yourself increases the Eat signal, and then feeding yourself triggers the Stop Eating signal. And that is what happens. Just like all the other endocrine feedback mechanisms. You produce one hormone, and then another hormone tells you it's time to stop via that hormones release.
Some people, such as with Prader-Willi syndrome, are always hungry and you usually have to lock your food up, but that's a rare disease.
The article is mainly pointing out how dysfunction and or feedback of the signaling in the body suggest what the chemical signals are doing and that they may be involved in regulating feeding and energy stores, and when the signaling is dysfunctional it in theory could cause obesity, and maybe even anorexia.
You're going to have to do a lot more to prove a causal link to fashion advertising causing obesity.