[Anthony-G]

I’m fairly certain that the “odd” behaviour is that of the extremists who hijacked the original concept to promote the idea that being fat is good.

I’d consider calling it “odd” to be an understatement. I always thought such extreme positions were a bizarre denial of the negative impacts that obesity can have on personal well-being and quality of life. Having said that, I only ever encountered such views on the Internet; never in real life.