But the root post never once mentioned "intelligence". All that matters is whether the system's output, whether art or prose or a bash script, is good enough to be used. Even "good enough after a skilled human editor goes over it", which seems to be where we are now in art and prose and bash scripting, is more than good enough to fundamentally change global society forever.
The handwringing about the measurably real effects of fake news and algorithmic nudging shows that society actually understands the threat. We've barely even entered the era in which writing becomes free-as-in-beer, and you can already ask ChatGPT to write you limericks about canola oil. Producing high quality N writing about X used to cost a lot of money, and the writer would take a variable amount of time to write it, let alone come up with it, structure it, polish it. It's not about some fear of an AI takeover; AI as a multitool wielded by the unscrupulous is the real threat.