Speaking to my use cases, printing a QR code on a flyer is much less materials-intensive than using NFC stickers, even if you have a device to write the latter in bulk.
It's a fundamentally lower-tech and more accessible technology.
What surprises me is that they're not more commonly used as malware attack vectors.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.