Twitter adds QR codes for some reason

Twitter today introduced QR codes into its apps for iOS and Android, because not having QR codes was Twitter’s biggest existential threat as a business and the main reason that no one ever followed anyone on the service.Before now, to follow someone on Twitter you had to click a giant button that said “Follow” at the top of their profile. Ugh, no thanks! Now, following someone is as easy as navigating to your profile, tapping the gear icon, tapping “QR code,” tappin