I have been using a new PJ with polished blade for a couple of weeks, and it already has a couple of small scratches on the blade. That's OK by me. I'm sorta doing a test to see how it holds up before putting any of my treasured CRKs (with polished blades) to daily use.
I tend to rub the blade down with the oil on my fingers. All the time. Gross as it sounds, it keeps it from tarnishing, hides any small scratches, and I swear it makes the knife move through material better. Sometimes I wonder if I started doing this to remove/hide the fingerprints, lol.