Not sure if this counts as negative ranting, but I think I have a good understanding of why I draw and RP as fat hero characters so much. I feel they're like an extreme form of escapism. I draw and RP big, strong, impervious fat guys a lot because I think the stereotype is cool, but not realistic. I mean, they're sort of glorified sumo-wrestlers, but at the same time they're really not a representation of being fat in real life. But I don't draw them to escape from reality, but to escape from the media. It feels like fat characters are almost ALWAYS villains.
I mean, I get why. "No one likes imagining themselves as a big fat guy," so people generally don't make fat heroes because it's such a small niche. ...And usually when they DO make fat goodguys, they're usually useless. I rarely see goodguy tubbies built like badguy tubbies: Big, strong, impenetrable. That might be why I tend to draw and RP them a lot cause I see them so little.