> dangerously weak and nonsensical philosophy
Yes, clearly Wittgenstein is less of a philosopher than the author of this article.
Look, I get what you're worrying about. Yes, there is a dark history where totalitarian regimes suppressed people from free speech. Nobody wants to go back there. What I'm pointing out is that "free speech" as implemented in the current society is not without its glaring defects, and that to get to the next stage of progress we need a subtler idea of free speech, rather than this clearly incoherent "speech is powerful enough to cure social ills, but cannot inflict as much damage as a fist."
Just to spell it out for you again, under any reasonable metric, the desirability hierarchy is:
totalitarian suppression of free speech < "free speech" in the liberal world as we know it < a more nuanced understanding of "free speech", with bug fixes