The Soviets, the Chinese and the Nazi’s knew of the power of calling your political opponents or dissidents mentally unstable or down right crazy for deviating from the dominant political paradigm.
In fact your average bully does exactly the same around the corner from where you live. It’s the easiest way to kill of any criticism that threatens the existing power structure. Does it happen in New Zealand too? Hell yeah.
From the subtle threat of being ostracised when speaking out against local bullies to the actual locking up of people who express doubt about the official story of 9/11, in New Zealand you can get punished real hard for merely speaking your mind.