You make some good points, but it's easy to say as someone who is, looking at your profile pic, most likely conventionally attractive.

I've seen and wondered the same things you have. But then I check myself when I remember that a lot of these women, particularly severely obese people have a lot of internalized self loathing. To counteract that, you have to match that energy. If on the course of doing so, it comes off as too much or too extreme or even narcissistic to the rest of us, well....we don't and have never known that level of self loathing. Walk a mile before judging, as they say. How they attempt to course correct, is ultimately none of our business. You can mute, not participate with, and even block content you don't want to see before making a moral issue of someone else's behavior because you don't understand it. That's your power.

They're trying to back some sense of self and not hate themselves. Why piss on that? It's not hurting you. Just wish them well and go about your business.