Well, while I see where you're coming from, and certainly don't think it should be illegal to be a looney (unless breaking the law), there absolutely should be sanctions for companies spreading misinformation. People can be looneys all they want, but companies have a responsibility to prevent intentional misleading of the masses. It's sad that this is even a discussion, because ideally people would be capable of distinguishing good information from bad, but unfortunately that's not the case. We are in the age of facebook experts, and we are increasingly seeing how much of a threat it can be to actual progression - medically, socially, and many other ways.
I'm not saying make it illegal to be stupid, although it would be nice. But people or companies intentionally spreading misinformation (easily refuted misinformation, I'm not talking about bad opinions) should be reprimanded. Big tech companies don't have an incentive at the moment because it would drive users away. Besides, there are already laws in place restricting freedoms which are readily accepted because they make sense for the benefit of wider society, and indeed the individual, even if that individual doesn't realise it. This is no different. It's an evolving world.
Also, I don't see how this ties into the issue at hand, although it's an interesting topic.