What the original author isn't aware of is the fact genuine product stickers often will include minor differences (two transposed letters, a line of text being

What the original author isn't aware of is the fact genuine product stickers often will include minor differences (two transposed letters, a line of text being slightly off to one side, a copyright symbol with a misprint, etc) that are used to quickly visually verify the stickers. This works incredibly well because forgers try to get everything right, and often won't detect these subtle differences from the photos they are working with. The military does the same thing on badges for secure areas. They will have a misspelling of the base name or two shades of the same color on the front/back so guards can visually verify them as legitimate.