- #1
BWV
- 1,465
- 1,780
My vote is cryptocurrencies, but here is MIT Technology Review's annual list:
https://www.technologyreview.com/2021/12/29/1043061/the-worst-technology-of-2021/
https://www.technologyreview.com/2021/12/29/1043061/the-worst-technology-of-2021/