Most of them aren't even former fats. Just downgraded to large planetary bodies no longer classifiable as planets. Just because you lose a whole human in weight doesn't mean you're automatically a human now. In fact, the people who fully become human again usually have wonderful attitudes about the whole mess... It's really just delusional, mentally unstable small fats with terrible self-esteem who want to believe they're no longer fat who are trult annoying and overbearing.