[brokentone]

Sure it has, reputable news publications as well as scientific journals issue retractions and updates as a matter of course. E.g. NY Times: https://www.nytimes.com/2022/06/30/admin/new-york-times-corr... Additionally, your example of Wikipedia directly works against your argument as one of the core features of Wikipedia is the revision history of every single page. Being able to have an understanding of what it said over time is a feature which counterbalances the nature of it being sourced by pseudononymous writers.