tbh though AmberLeaf unless you are a naturally slim person (I'm not using the word thin deliberately here), if you live the typical Western lifestyle and eat even an averagely healthy diet, you are going to put on weight throughout life, unless you exercise or diet, or both.
I don't think condemning someone because they diet or exercise or both is that realistic actually. Far more people die of lifestyle diseases caused by being overweight, lack of exercise and smoking and drinking too much than they do of anorexia.
Dieting and exercising and watching your weight does not mean an association with anorexia. I would have thought that watching your weight, dieting when necessary and regular exercise were a good thing, non? Again, more and more I think this going up in size every few years is a British thing, but that might because I'm in Belgium right now, and virtually every woman I meet talks about being on a diet and their "line".
Models look as they do because that shape shows off clothes best. It is a netural shape for clothes. Although I'm not that shape myself, I can judge pretty well from a neutral comparator what clothes will suit me and which ones don't. I can't do that with a plus sized model, because the height means that it still isn't anywhere near my own body shape. I suspect a lot of people do carry more weight than they are comfortable with, and models are one group that drive this home, hence they attempt to justify it by criticising models.
And I think in the run up to the Victoria's Secret show, just as I might watch my diet so as to ensure a flat stomach if I had a big night coming up and wanted my dress to look good, the models do certain things that they would not always do. There are ways to make your muscles stand out more in photographs, and I'm really glad to see a high profile model with muscle tone, rather than muscle being treated as something not desirable in women because men might not like it.