I had read the term many times on the Internet from people who’s been vocal on certain topics which for different reasons turn out to be controversial. Gaslighting https://en.wikipedia.org/wiki/Gaslighting I encountered this term for the first time when I was being vocal about an IT conference in Norway which I thoughts had a highly inappropriate name (post in 🇳🇴 Den Norske Dataforening sitt manglende gangsyn) . During this action in trying to get them to change, I was exposed to this behavior for the first time.