Beyond even PR concerns (which you could, in principle, ignore as silly, though of course in practice they are a significant hurdle), you also need to consider that free speech even for people is not absolute. If an LLM responds to a child's query with sexually explicit content, that likely breaks the law, and the company is liable for that. Similarly, if an LLM generates libelous statements about a real person when prompted to describe that person, the company is liable. If an LLM starts generating medical advice or legal advice, that might break certain laws as well (though perhaps some reasonable disclaimers could fix this too).