"Everything in moderation" is a very solid philosphy to have - unless you have an abused body, like most obese people. Lo-carb is one way to overcome the out-of-kilter systems obese people have, I think moderate carbs for the obese would simply maintain the weight they have.
What very few "get" (and I'm not saing you) is drastically reduced carbs (40 grams a day, no sugar no flour no milk) is for weight loss - maintainance lo-carb allows more - thus, moderation.
The common misconception is lo-carb means NO-carb, which simply isn't true.
True, but I think if that philosophy were taught from childhood, we could probably eliminate the problem of obesity within a couple generations. Living in a land of plenty is both a blessing and a curse. We Americans like to indulge because there is so much of everything. Just look at who hangs out at Old Country Buffet.