Anyone who scoffs at others for their weight. As a short woman with a smallish frame and not many curves, I've been on the receiving end of "You're too thin to be attractive! Men like REAL women with curves!" Even after 3 kids, I still have slim hips and a small chest. When I get that I shrug and say either "Real women come in all sizes" or "I'm real enough for my husband."
The naughty snarky part of me would love to make a point of looking around my body and then saying "Hm, I don't see an air valve so I must be a real woman." 
But on the other hand it also ticked me off in the past (don't hear it as much where I live now) when the extremely slender and fit sort would snort or scoff in looking at someone with a stockier, curvy build and insist that person is overweight and needs to diet. I guess people aren't as image conscious in this town as they were where I used to live. Thankfully!
My good friend in middle and high school was a tall girl with a stocky build. Not overweight, but more often than not she wore boys clothes because she couldn't find much in the jr. section of stores that would fit her. My mother would say "She's chubby"
I'd say "No, she's just big boned." To which I'd get a very condescending reply of "Big boned is a nice way of saying someone's fat, dear. It's an excuse people use when they don't want to do anything about their weight."
Grrr. While she didn't scoff, I have a friend, who I've posted about before, that has many ideas about many things, many of them wrong. I just joined WW at work, since I am fat, and need to lose weight. I'm 5' 5" and the healthy "range" for that is 120-150. I can say with certainty, I haven't weight anywhere NEAR the low end since I was about 12. And I was not heavy until after college.
I never have been, and nver will be anything less than a size 12. Its just not the way I'm built. I am a bit stocky, and a bit of a late bloomer, so when I was in my “best” shape, I was about 130-135, and a size 12. I’m big boned and a former swimmer, which means I have shoulders like a linebacker. I also know at 47 I will never look like I did at 18, and I’m fine with that. I’m aiming for somewhere in the 150ish range, but I’m not obsessing over the actual number.
My friend however, said this to me. I was like ok, right, as you lose weight your bones “disappear” ok sure, if you say so (her comment in quotes below) I'm also not sure where her shoulders went either, but I've learned to leave well enough alone with her sometimes as it just makes me want to bang my head against the wall!
"When I lost all of this weight the large shoulders and bones disappeared - it was all the excess weight I was carrying and didn’t even realize it"