MSFT published a study at least two years ago, where they (outsourced?) engineers to build a language model trained on Wikipedia and others, and then auto-read

MSFT published a study at least two years ago, where they (outsourced?) engineers to build a language model trained on Wikipedia and others, and then auto-read current Wikipedia pages, and performed edits to "correct" them.. with statistics on correctness and model performance. Startled, I asked wikimedia engineers on Libera IRC about it and they refused to comment in any way, which was uncharacteristic. It appeared to be manipulative, lawyer-like you might say, on the part of MSFT because "what you gonna do?" The writeup (by outsourced engineers?) bragged of high "correction" scores as if it was a contest, in the style of other LLM papers and studies.