The issue isn't that she's overweight. I mean, strictly by the law of averages, I'd say over half of the people who comment on Tattle could stand to lose a few pounds (or more). I mean, I drink DIET Mountain Dew, for Pete's sake...
The issue is that she is so fake about it. The camera angles from the ceiling. The obvious filter jobs. She does whatever it takes NOT to be herself. That's why, when these types of photos show up, it's so startling. And sad. Because the image and the reality are so disparate.
She has a fake job living a fake life and showing off fake looks with a fake boyfriend on a fake channel. So when reality bites, as it does in that photo, it bites HARD.