None of that makes "remove the fats and replace them with sugar" in the post upthread accurate.
When you take a high satiety, high fat item, and replace it with a non-fat, low satiety item, you are in effect replacing fat with sugar, because you will eat/drink more of it to get same number of calories, and same amount of fullness.
When you take a high satiety, high fat item, and replace it with a non-fat, low satiety item, you are in effect replacing fat with sugar, because you will eat/drink more of it to get same number of calories, and same amount of fullness.