IMO tighter folds of skin are more visualy attractive. If you look at a virgin or inexperienced females vagine and compare her to a porn star it would apear there is a direct relation to the tighness of the skin fold to the tightness of the vagina. I’m not about to say that this is true because that’s going from one extreme to the other.
I’m getting into assumptions and speculations now so my final answer is I don’t have a clue. I’m not a gynochologist. I’m just a man giving his views on the newly developed vaginal rating system. 