Criticizing Stallman and his cult is a taboo, and will get you banned from all related IRC channels and forums.
https://www.stallman.org/archives/2018-jan-apr.html#8_March_2018_(Support_for_free_speech)
An analysis of survey data suggests that US Liberals mostly support free speech for views they oppose, even more broadly than they did decades ago. This is good news, since the loss of freedom of speech about political views leads to the sort of tyranny we see congealing in China.
https://www.stallman.org/archives/2018-jan-apr.html#6_March_2018_(The_free_speech_of_bigots)
I respect the free speech of bigots, not because I agree with what they say, but rather despite the fact that I disagree with them. I am sure that if some views come to be censored, they won't be the plutocrats' views, or the bigots' views. Rather, the views that criticize them will be censored.
https://www.stallman.org/archives/2018-jan-apr.html#5_February_2018_(Poland's_Holocaust_ghosts)
I agree with Friedland in condemning laws that prohibit statements of views about history. Whether it is the genocide of the Jews, or the genocide of the Armenians, or any other, forbidding disagreement about history is itself tyranny.