I haven&#x27;t seen a QR code that wouldn&#x27;t lead to a plain online ad for a long while. Their other, &quot;sincere&quot; uses have diminished most likely because there are always more reasonable alternatives, such as a short and memorable brand&#x2F;trade name that can be easily found online if needed. QR codes are really just an awkward way of collecting &quot;clicks&quot; so to say, and they require too much effort for that (take out your phone, fire up an app, scan, check results, go to the web sites, see the ad - oh really?)<p>At least in Dublin, Ireland you can still see them, e.g. on bus stops, sometimes on brochures here and there and as a rule the context suggests they should just lead to an ad and nothing else.