 Listing examples of journalists being embarrassed by reproducing hoaxes and other falsifications from Wikipedia in their writing, including false information propagated by major news organisations in their obituaries of Maurice Jarre and Ronnie Hazlehurst, McCauley stated that

The "Daily Mail" – itself banned as a source on Wikipedia in 2017 because of its perceived unreliability – has publicly stated that it "banned all its journalists from using Wikipedia as a sole source in 2014 because of its unreliability".Science and medicine are areas where accuracy is of high importance and peer review is the norm.While some of Wikipedia's content has passed a form of peer review, most has not.