You can already do that by hand (hoaxes have been done, e.g. https://en.wikipedia.org/wiki/Henryk_Batuta_hoax https://en.wikipedia.org/wiki/Henryk_Batuta_hoax)

You can already do that by hand (hoaxes have been done, e.g. https://en.wikipedia.org/wiki/Henryk_Batuta_hoax https://en.wikipedia.org/wiki/Henryk_Batuta_hoax) The only thing GPT changes here is speed at which you can do that, but if you start mass-spamming with such articles that will actually make it easier to spot.