I wrote a scathing reply last night, but didn't post it. I will try to be more moderate today.
Publication does not mean endorsement of the view. You see this in the disclaimer in all the editorials: "The views expressed are those of the author, and do not necessarily reflect the position of [publication]". They can publish, on their platform, views that they disagree with. On that point, you are simply wrong.
But your views here (that publication equals endorsement, and that communities should shut down views they don't accept) - I find those views to be odious. Contrary to the ideals of America, even. Should I be able to get you banned from HN? If they don't, should I say that HN endorses your views, and get a howling mob to shut HN down?
That's the fundamental issue here. It's not just those people out there. It's you. Your views offend people. It's going to happen to you. Think well whether you really want odious views removed.
And it's going to be me. That's why I'm so defensive here. I already hold views that some find odious; as society moves its position, I will hold more. Within the next ten years (and maybe a whole lot sooner), this is going to be me. That's why I'm opposed to societal censorship. If a mob can shut down the alt right for being too far outside society, they can shut down you and me when they decide that we're too far outside the new norm.
Should we just accept society's definition of what is right? No. Either there is a real right and wrong, or their isn't. If there is, why do we think society will converge on it? Why do we think that society's view evolves to ever-increasing correctness? (It has, in the past, evolved to ever-increasing conformity with the current view, but that doesn't say much.) Rwanda, for instance, abruptly decided that murdering one race was perfectly good. China decided that social pressure to conform to the party line was good. (You may say that was imposed on them by the party, and you'd be right. But it still became the way the society behaved.)
On the other hand, if there is no real right and wrong, why should we treat society's current views as if they had moral force?
About the baker: If you don't like that one, try this. A print shop prints flyers for a Richard Spencer rally. Is the print shop endorsing Richard Spencer's views? How about if they design the flyer? Where do you draw the lines between what happened on CW, the print shop, and the bake shop, and why do you draw them there?