No, wasn't inferring that the scratches are left behind by everyone.. There a lot of fly by night operations, you know as well as I do, it doesn't take muych effort to make a vast difference, but perfection... that is a different story.
Too often I see a set that should be yellow (you know the cars) and they are not, and I look, and Yip, they been done. But it was a hack that did it... and left scratches behind.
The rouge is handy fgor me as I polish aluminuminuminum as well, and it offers a brag point, or elitest element.. NO sand scratches ever, bleh bleh bleh.. that sorta thing.