“In figures given to Big Brother Watch, South Wales Police said its facial recognition technology had made 2,685 “matches” between May 2017 and March 2018 – but 2,451 were false alarms.” This is going to be a disaster.
Crank magnetism also denotes the tendency — even for otherwise “lone issue” cranks — to accumulate more crank beliefs over time. You know that old saying about not being so open-minded that your brain falls out? People with crank magnetism didn’t pay attention to that. Crank magnetism is an important stepping stone on the path towards being wrong all of the time. Its opposite is the stopped clock (which is when otherwise overly credulous people actually find some crankery that they won’t believe in, and may even actively denounce it).