It makes me crazy. I was at a pizza place and they had a low carb special - it was a crustless pizza. They put the sauce on a plate, and layered it with meat and cheese!
I don't mean to diminish the struggle that some people have with weight, but please. It's calories in vs. calories out. There is no magic formula - never has been, never will be.
Of course you lose weight when you cut out all carbs - cut out any major food group and you'll lose weight. And then you'll gain it all back when you add it back into your diet, just like my SIL keeps doing. It makes me crazy I tell you!
One of dh's best friends is on the a low carb diet. We spent the weekend with him - he ate steak, cheese, fried foods, and more meat. He even fried up the previous night's steak for breakfast, topped with cheese! But he wouldn't eat the salad because the salad dressing had some carbs in it.