Ah I see.
The thing is, I agree with most of what that article says, but I take issue with the phrase "the correct weight".
Whatever you weigh at the moment is "the correct weight". If I drink 1/2 gallon of water and get on the scale and it says I weigh 4 lbs more, that *is* a correct and accurate weight. It weighs me and the 1/2 gallon of water in my stomach.
If I put on my winter coat and get on the scale and it says I weigh 3 lbs more, that *is* a correct weight. It's the weight of my body, plus the coat.
If I eat a lot of salt today and tomorrow the scale is up 3 lbs because I'm retaining water, that *is* a correct weight. It's the weight of my body plus the retained water.
Here's another variation: If you weigh yourself on YOUR scale and it says (for example) 150 lbs and then you go weigh yourself on the scale at the gym and IT says 154 lbs ... which is the "correct" weight?
The bottom line here is that unless you're weighing the SAME THING every time on the same scale every time, then you're just wasting time. CONSISTENT weighing is the most important part of using the scale as a guideline to fat loss.