The shiny appearance is from grease. Your keys aren't "worn out", nor are the letters rubbing off. The grease just shows easier on shiny plastic surfaces when compared to slightly rougher surfaces. This is why the old MBP's keys didn't really get shiny, or not easily.
Just use a paper towel or any kind of cloth, wet it, rub a tiny bit of cleaning solution on it (anything that cuts through grease and oil) such as dishwasher liquid, and rub each key. You don't even need a lot of soap. Just put a drop on it, rub it into the paper towel, and clean the keys. It works on my keys.
Nerds are such a whiny bunch....
Just use a paper towel or any kind of cloth, wet it, rub a tiny bit of cleaning solution on it (anything that cuts through grease and oil) such as dishwasher liquid, and rub each key. You don't even need a lot of soap. Just put a drop on it, rub it into the paper towel, and clean the keys. It works on my keys.
Nerds are such a whiny bunch....