One thing I noticed in the article was that all of the rumors being discussed were negative rumors. The goal was to take rumors that might bring down morale and "set them right". I wonder if positive rumors were treated the same way.
It’s a bit like “racism” : I honestly have no idea if the current academic definition is “prejudice + power” or just “prejudice” - but to a significant extent it doesn’t really matter since the common understanding is the one that matters when communicating.
Most of the genocides, eugenics, racism, etc of the US, Britain and Germany in the 20th century was pushed by progressives wielding facts and science as blunt instruments.
Science was central to the genocidal movements in the US and Germany. In many ways, science was the cause of the genocidal movements. Eugenics was a scientific movement championed by scientists. What changed wasn't science. It was culture and politics that changed. The horrors of the 20th century led philosphers, politicians and ordinary citizens to lose their blind faith and trust in science and progress.
The rise of science and social darwinism of the early 1900s is similar to rise of AI and technocracy. Hopefully we won't as foolish to place blind trust on it and history doesn't repeat itself.