> I'm almost a free speech absolutist, but I also really hate all the crazy, conspiratorial thinking that is so common these days. It puts me odds with myself. I can't say I'm sad when crazy and dangerous ideas are removed from the internet. However, I think it's clear to see how this could be abused. A system where the "right" ideas are allowed depends on the people in charge having the "right" ideas.
On the other hand, I'm not a free speech absolutist (obviously) because I don't trust other people to behave reasonably. But if everyone were perfectly rational, I probably would be; and maybe you and I are rational enough that we can handle "dangerous" ideas without succumbing to emotional manipulation (but then again, maybe not). However, while perhaps we can watch a purposefully mis-informative video, evaluate the merits of those claims, and dismiss them out of hand, do you trust everyone else to do the same?
That isn't to say you or I should be the arbiter of truth, but there should be some bare minimum standard. In my mind, there are two pillars for public discourse:
1. Facts, upon which arguments are based.
2. Deductive/inductive arguments, which appeal to values.
Obviously different people will have different values, so they will evaluate the weight of the arguments differently; however, facts are facts -- those should be the common ground. When someone denies reality by positing conspiracies without meaningful evidence, public discourse is impossible.
> What if instead, it's the company which is telling the truth, but the government which is malicious, and wants to censor them?
If the government is malicious, the correct response is voting. Unlimited free speech won't help: a malicious government could censor free speech; or a malicious government could promote un-truths with as much weight as truths, transforming "matters of fact" into "matters of opinion".
(As an aside, I'm nearly a democracy absolutist despite my distaste for free speech absolutism. While that might seem contradictory, democracy thrives in public discourse, and unlimited free speech can hamper that: think Citizen's United, where money can give someone an outsized influence; or conspiracies, which deny facts.)