Exactly.  This sub isn't about advocacy or activism.  It's not about concern for their health or concern for society's wellbeing.  It's about looking and reading about fat people and hating their horrific habits and lifestyles.  All those other things come into the conversation, as do many other things, but they're incidental to the purpose of the subverse.    Let's not deceive ourselves, the primary purpose here is to point at the fatties and think they're disgusting.  That's why there's the no sympathy rule.