Are you saying the skirt is hanging down because the screws are loose, causing the 2cm gap? Are they screws or bolts?
If they are screws, maybe a slightly larger or different threaded screw might pull it tight. If you found it worked, you could use some Sikaflex on the top edge of the skirt, especially at the screw holes, then screw it all tight. Once the Sika sets, nothing is going to move again.
I like the general look of my mods, they make the whole car look larger and more aggressive. That's just my opinion though, and I appreciate you respecting that.
My personal dislike is false badges, like turbo or supercharged badges on cars that aren't, or chev badges on cars that have no chev parts in them at all. I have friends with these and I give em heaps .. but they are still my friends, because I respect their right to their own tastes too.
If we all liked the same thing, there would only be one model of one car in one colour available in the world....