The question I have is - what good does it do anyone to be cruel and judgmental? Sure, the mean case may be "lazy slob", but so what?
Besides letting anonymous Internet People guffaw in armchair superiority, what does this judgment accomplish?
As a former fatty myself (well, okay, I'm not exactly thin, but no longer huge), I can say without even an ounce of doubt that no amount of ridicule contributed to my turnaround. Support and the complete internalization that the ship can be turned around was what did the trick for me - no amount of haranguing (thanks, parents) nor ridicule (thanks, high school) over years did squat except drive me further away from success.
So we assume that a random fattie is the mean case, and is fat because she's a lazy slob. Then we are justified in saying cruel things behind the mask of anonymity. She feels worse about herself and wallows in another pint of ice cream, and the Internet People tip their fedoras at one another.
Is there any positive to this? Isn't this just entirely negative for all involved except for some people who got a 0.5 second endorphin injection?
I don't know about you, but "things that are damaging to some and provide no good to anyone except ego boosts" counts as a Bad Thing in my book.