Worse, perhaps. Kessler Syndrome will eventually resolve itself as junk falls out of orbit over time, or new methods for cleaning it up are developed. Information, once buried in noise, becomes unrecoverable without a source of known truth for correlation.
Curation that tracks the provenance. If we receive a string of text by itself we can't do much about it. We need to know from where it came from, whether it was written by a human, etc
Human provenance is less important than human curation here. AI can already infrequently output content that surpasses average human-generated quality in certain categories. As long as in the end you are checking that content exceeds an average bar of quality as assessed by human aesthetics, and ensuring that you have a diverse set of content (eg. not overrepresented by content that AI is particularly good or prolific at), it should still improve outcomes.