I like South Park too but calling that contribution "substantive" is quite a stretch.
There's no view that can't be expressed civilly and substantively, so accusations of politically correct censorship on HN don't hold much water in my opinion. It's usually just a fig leaf for low-signal ranting, when the correct thing to do is to be a good citizen and improve your behavior. Most HN users don't have trouble doing this, regardless of where they fall ideologically.
But is the irony of you threatening to ban me for "inflammatory comments" and the quote itself--about the culture of militant political correctness--not lost on you? Do you see the irony?