That's definitely something worth chasing down. I haven't found it in the articles I edit, but I guess I tend to avoid editing articles where people have axes to grind (Israel-Palestine, U.S. politics, climate-change, alternative medicine, that kind of thing).

I do sometimes find misreferences, but in the areas I edit (archaeology, geography, engineering, history) they're most often misreads or misinterpretations by someone who was reading either too carelessly or without enough background.