1982 S Africa 1/4 Krugerrand-Scratch Significance

The following close-up shots exhibit the minute scratches present on the coin.

It is important to note that these scratches close to the outline of the head do not actually appear to continue as a scratch onto any adjacent surfaces of the head, mouth/chin, front hair, or rear hair etc.

The most pronounced scratches are the ones below the area of the chin.

To avoid ruining the patina from a sewing needle, for example, a rubbed a porcupine quill instead over these scratches adjacent to the chin.

The flexibility along with just enough rigidity of this quill was sensitive enough to allow me to feel the roughened areas of these scratches under the chin.

I assume, therefore, that this implies, as you suggested, that the dies were over polished at some point during the minting process resulting in the creation of minute incuse ruts in the die which conversely resulted in the raised lines on the obverse surface etc.

So how does this fact affect the value or rarity of this krugerrand?