[talmand]

But what were you promoting with these QR codes? If they were just stickers of codes with no indication of what they were for then I would expect hardly anyone to actually scan them. But if it were associated to something that might interest them, say an event or big sale, then the response might be higher.

If you put the codes on top of other people's advertisement's then one could assume that the advertising wasn't effective enough for someone to be interested in scanning the code. Plus if the ad didn't say what the benefit of scanning the code was since it probably wasn't designed with that in mind, then why would they bother?

Also, from my experience in online retail, a response of 2% is often considered a good return. Just depends on what you are doing.

I just think you possibly conducted a less than useful test and possibly came to an invalid conclusion.