Kaggle and the Wikimedia Foundation are partnering on open data

Co-opting of which data, from which groups/editors, on which topics?

I think you're referring to the Wikimedia governance change vote (https://news.ycombinator.com/item?id=41049562), not acceptance of content:

"How the Regime Captured Wikipedia" (piratewires.com) https://news.ycombinator.com/item?id=41167891

... or more recently, content written by/assisted by AI.

Or else what?