Fooling people with chatbots having clever language constructing has been done for a long, long time, see the Eliza effect[1]. Douglas Hofstadter gave a good demonstration of GPT-3 limitations[2]. GPT-3 is no doubt "better at what it is" than earlier language models. But that doesn't mean it's better at everything humans do with language (tell sense from nonsense, reasonable metacomments, etc).
[1]https://en.wikipedia.org/wiki/ELIZA_effect
[2]https://www.economist.com/by-invitation/2022/06/09/artificia...
Note: There's a critique of the article here but if you look at Radford Neal's comment, the point that GPT-3 is a clever lookup tool remains. https://www.greaterwrong.com/posts/ADwayvunaJqBLzawa/contra-...