Are you talking about a machine polish or a polish with a cape cod cloth? Because in the original post you made you said this.
I personally doubt someone would have sent you any mod just to polish with a cape cod cloth. If you machine polished it that is very different to saying polishing with cape cod cloths or heavy general use.
The Stingray I got from attack of the clones has been used everyday and polished with a cape cod cloth and no brass plating has rubbed off, that is not to say it won't in the future but I have a paps clone which is brass plated and it tarnishes in a different way and it won't clean up with the toothpaste and toothbrush method. The stingray does.
It is true not everything in a tobeco box is from tobeco. It is also true that not every post that every member makes is the strict truth either.