>Letting anybody edit any page is a great way to get AI and human slop everywhere.

but that's not how Wikipedia works. articles about noteworthy or controversial things have activist commissars and/or paid shills watching every edit, and unless your edit aligns with the narrative they wish to present, it will be undone with essentially "because fuck you" as the reason.

its value is still considerable, of course -- there are far more neutral things than controversial ones, and most of the articles about those are fine. everything even remotely political, however, is thoroughly subverted.