This is an uncomfortable, rude, politically incorrect truth - but we're not going to have a productive discussion about "silencing conservatives" if we can't admit it.
It is absolutely possible to advocate for the political positions of conservatives (looking through the 2016 GOP platform, for instance - limited government, federalism, avoiding trade deficits, repeal of Dodd-Frank, auditing the Fed, right-to-work, opposition to abortion, support for the electoral college, removing gray wolves from the endangered species list, etc., etc.) without behavior that runs afoul of the norms. If there's a case where Twitter suspends someone for opposing Dodd-Frank, then we should absolutely criticize Twitter. (And I think there's a legitimate discussion to be had about where the line is about criticizing the government's pandemic response vs. spreading misinformation, for instance.) But saying "Conservatives really like to advocate for shooting people without due process, Twitter doesn't permit the advocacy of shooting people without due process, therefore Twitter is biased against conservatives" is more of a statement about conservatives than about Twitter.
HN should have a setting so that the most downvoted posts show up at the top of the page... That would save me a lot of scrolling to get to the unpleasant but accurate content.