[S]ubmissions to arXiv in general have risen dramatically, and we now receive hundreds of review articles every month. The advent of large language models have made this type of content relatively easy to churn out on demand, and the majority of the review articles we receive are little more than annotated bibliographies, with no substantial discussion of open research issues.
arXiv believes that there are position papers and review articles that are of value to the scientific community, and we would like to be able to share them on arXiv. However, our team of volunteer moderators do not have the time or bandwidth to review the hundreds of these articles we receive without taking time away from our core purpose, which is to share research articles.
From TFA. The problem exists. Now.
"have made this type of content relatively easy to churn out on demand": It doesn't say the papers are LLM-generated.