Regardless of spam, there is another fundamental issue with AI, Accountability. Any text you've read had a real person behind it with real intentions. Malice and greed or honesty and exploration. It would be very difficult to hold an AI accountable for any offence committed on accuracy or honesty. With a person, you can slowly get to the bottom of it and develop a relationship. AI will muddy the waters of people writing and thinking instead of offloading everything to an AI that could do it faster and you'd even evade any responsibility for your text as you could claim that the AI might have inaccuracies and does not reflect your own opinion