I think he means that the door ding strips were put on before the door was clear-coated...so he has a racing stripe, like many of us. Since my car was bought used from a Ford dealer, they would not do anything as the previous owner "must have had the door repainted"...
You are looking at prolly $200+ to have the door repainted. I'm leaving mine like it is because it would cost a lot of money to fix every exterior blemish on my car. I still like it better than having the door ding strips on, one of my doors is older than the other so they were a different color on one side anyway. If someone really slams your car hard, the strip will still allow the door to be dented. And most trucks/SUVs ding my door higher up, as I have the biggest damn dent/scratch I have ever seen (not really but still...Got it before door ding strips) way up on the back of my car.