There is no obligation for a private company to provide a platform for another's speech. None. It is, in fact, antithetical to the concept of a "Marketplace of Ideas." In a marketplace, shitty/dangerous/offensive products are not offered for sale on the shelves of department stores.

This happens so often on HN. People understand the superficial concept they gleaned from a class years ago, but since most people went into STEM, they weren't exposed to a liberal arts education that gives the full picture.

So, we're left with people pretending to understand a concept, while simultaneously destroying the principle with their opinion.