- Are QR codes ready for mainstream adoption? Although the editorial content of the Irish Daily Star isn’t particularly interesting in my opinion, one half-page advertisement on page fourteen of yesterday’s publication caught my attention. The advertisement contained nothing more than an image of one man’s bald head with a note saying “Warning: Coming to a head near you”, and cleverly a QR code placed neatly in the top-right-hand corner. So once again we ask the question - are QR codes popular enough to use in mainstream media?