Agreed silver they aren't the best examples. The closest example I can think of would be naming and shaming average build size 12s who are fine and healthy but at the bigger end and calling them overweight. Like Cheryl is at the smaller end of fine and healthy but is being called underweight. And then calling the size 12's bloaters, lardy, unattractive, fat, elephant like etc and point out any visible fat and comment on how undesirable it is. Like calling Cheryl boney, unattractive, skeletal, gaunt, childlike and pointing out her ribs and commenting on how it's undesirable. And then assuming the size 12 is greedy and never stops eating and has a mh issue causing it. Again, the reverse of assuming she's starving herself and doesn't eat and has anorexia nervosa. And then say what a bad role model the size 12 is and how we'd hate our kids to look like that. Getting the picture?
Personally I think we're all different and I couldn't give a fuck if someone is at the plump end of healthy. Nor would I even want to join in making silly unfounded guesses about the mh or eating habits of someone actually an unhealthy weight. I certainly wouldn't want to make snide remarks about the appearance of someone morbidly obese let alone someone who is just a different body type and at the larger end of big. However clearly other people think differently, discussing fat, nevermind a bit plump must never be done, but they're fine to have open season on thin.