I want to speak up in favour of r/fatpeooplehate. The various weight loss subreddits (such as loseit, keto, intermittentfasting) often have personal accounts of being undermined by family and friends when trying to follow orthodox medical advice. It is hard to avoid getting fat when family and friends are already fat and encouraging you to join them.
sangharakshita (a Buddhist teacher) preached that the central problem of the spiritual life – for most people at least – is to find emotional equivalents for their intellectual understanding. That is wise and true. But if it is misunderstood as a restrictive claim (this is only a problem for spiritual life, for the rest of life intellectual understanding on its own suffices.) then it is dangerously misleading.
It is not enough to understand calories in and calories out intellectually. You still have to cultivate the emotional strength needed to escape your own rationalisations, the rationalisations that other people push on you, and actually put down the fork.
Much of today's USA thinks that it is OK to eat yourself into an early grave. Gluttony has become so accepted and endorsed that getting fat has become socially contagious. When people reject this, there is a phase of being angry: how did I get sucked into such a dysfunction social consensus? One chocolate bar at a time? Then what? r/fatpeoplehate is angry and anger is ugly, but it is also important and necessary. People want to escape the social consensus and, people being people, they cannot do that on intellect along. They need space to vent and be angry.
You can see an example of fat-people-hate at https://voat.co/v/fatpeoplehate/2075965/10239491 FPH is on the side of the people that it nominally hates. It wants people to change, to come to the light side of the plate. The people who banned r/fatpeooplehate don't literally have blood on their hands, that is not how type 2 diabetes works, but they ought to have gangrenous, amputated toes on their conscience.