I quit buying new cymbals because of those labels. Really is there a tape that works as good for when you really want something to stick? I've tried gorilla tape and it's easier to remove (especially when you don't want it to come off) than these stickers. I think best bet is not to buy new cymbals until they quit using the stickers.
I honestly have no idea what any of you are talking about — I've bought exactly a dozen brand-new Zildjian cymbals since 2015 and have been able to cleanly remove the barcode sticker from each one using only my fingers. If you work slowly and pull the sticker up perpendicular from the bronze it should come off without leaving any residue, and if it does you can roll any leftover stickum off with your fingers. Ain't no big deal, sheesh.