Okay, sure it's been studied for longer but until very recently it wasn't really in the debate—or rather, in the average Joe's mind. Go to a nutritionist and they will tell you to eat less than you consume despite it being much more complex.

So I maintain my point. In fact, most of HN, which I consider educated, probably doesn't know about that. I myself heard about it very recently.

I find HN's general knowledge extremely lacking when nutrition is in question, basically at the level of general population.