This thread makes me so sad. I used to weigh 24 stone (or more) and I just knew people were judging me. It didn't bother me but the insistence that they weren't didn't ring true and I see now that my intuition was correct.
That being said, when I had to use a seatbelt extender to fly, I was smart enough to realise that my weight was a big problem and lost it all.
However, I still feel very compassionate towards bigger people, in the main. I guess because my parents, brother, SIL/BIL, FIL, MIL are all grossly obese and I don't want people to be mean to them even if they brought this on themselves by their habits.
I don't know what the answer is when people won't take accountability for themselves and don't seem to recognise, or care, about their impact on others.
Airlines will just penalise us all under the guise of equality or inclusivity. We'll all end up paying more and receiving less.
Let's be careful about fostering an us and them which isn't skinny vs fat but, rather, corporate vs fliers.