You can burn a library, or you can add in a thousands books with garbage. Both will render it useless.
And guess what? AI is _great_ at making garbage - very _convincing_ garbage, but still garbage. And it seems like this has begun to choke Facebook.
A very interesting read: https://www.404media.co/facebook-is-being-overrun-with-stolen-ai-generated-images-that-people-think-are-real/