In modern Western thought, voices aren't suppressed. Instead, they are politicized and used to put the speaker on a "side". Then the people on that side will defend their side (although not always the speaker) using that person as a proxy for their side.
We see this in global warming, in nuclear power, in gender equality, in free speech rights, in gun rights, in nurture vs nature.
I can think of only two examples where something similar to the behavior called out in this article occurs in the modern West. The first is the "neural network conspiracy" where CIFAR funded research for years, until they suddenly won. The other is cold fusion, where there are persistent rumors that this wasn't perhaps the dead end it was made out to be (I don't have the expertise to evaluate that and tell if it is crackpots or not though).