Dang it here's a better link (without the ref to the paper section included in the previous one).
www.nature.com/articles/s41...
Also, my website now linked from my profile.
nature.com
Introducing AI to an online petition platform changed outputs but not outcomes - Nature Human Behaviour
Corpus et al. examine how the introduction of an AI writing tool impacted Change.org petitions, finding that it increased petition homogeneity but did not improve petition outcomes.