How much of Wikipedia Wil eventually become AI generated? I don't mean through an official integration like Quora, but how do you stop someone from using ChatGP

How much of Wikipedia Wil eventually become AI generated? I don't mean through an official integration like Quora, but how do you stop someone from using ChatGPT and submitting it as a user edit? What if they see that their favorite artist or tv show or flower is a stub article and ask ChatGPT to extend the article? Facts on Wikipedia are supposed to have a verifiable reference, but most articles don't follow that rule.