Definitely this comment. It was on the very first episode of my comic, and at the time they commented that was already severely outdated art. (it was like a year old by the time she commented). I had already fixed the problems she's pointing out throughout the comic, I'm just too lazy to go to the first episode and fix it. I was coming out of a 3 year art hiatus, so my proportions were off.
Mostly, it's just her comment "maybe tell t hem to eat a few donuts, cuz they look so skinny that it appears as if they were borderline anorexic". Talk about insensitive in general, also, out of date advice.