I love my K8 except for the paint on the key caps -- its way too thin. I've chipped off the faces of a few keys because (I think[0]) I don't trim my nails every few days, sometimes up to a week. To be fair, I have the same problem with my MBP keyboard, but not with a cheap gimmicky Razer "gaming" keyboard.

I know I can resolve this by trimming my nails every day but boy is that tedious.

0: others have suggested it might be due to skin oils. I dunno. I'm not a chemicologist.