I'm all for people trying to lose weight to make them healthier and live longer. If they have the motivation and will power, good for them! What I hate is when others try to shame you into losing weight or think you're less than them because you weigh more.
I am currently overweight. I have been a size 3 and 104 pounds before so I have been thin and felt what that felt like. For me that meant eating pretty much nothing but one small meal a day and exercising a lot, which I despise. For me, it just wasn't worth it. I still hated myself. I still thought I was fat and would pound on my thighs and hips, sometimes leaving bruises, because I had thunder thighs and hippo hips. I hated not eating, and I hated exercise.
I am currently a lot larger. Borderline plus size here. Having 3 c sections has ruined my body. But somewhere over the last year, after getting annoyed by all the "thinspiration" on pinterest, and how everyone kept posting workout and healthy food stuff, I have finally said who cares. I have fat, more than I should. I am pushing 40, have 3 kids. I don't need to impress anyone but myself. I am finally ok with my weight. Yes, I would still like to be thin. But I am not motivated. I despise exercise. I would rather chop my own hand off than exercise for even one minute. And I love food. If I want to eat some fast food I will. I will drink my cola and be satisfied and smile. I am healthy. My recent yearly checkup confirms that. I have been maintaining my weight for the past 10 years. Why should I starve myself and go hungry just to try to fit in and be "acceptable" to others? If you don't like me overweight, then I don't need you!
Also, why does it seem that when someone has lost a bunch of weight, they get unfriendly? You think you're better than me just because you lost the weight? You were much nicer fatter. Stop exercising all the time, grab a cheeseburger and fries, lighten up, and be happy.