In the latest example why the "mainstream media" is facing a historic crisis of confidence among its readership, facing unprecedented blowback following Craig Timberg November 24 Washington Post story "Russian propaganda effort helped spread ‘fake news’ during election, experts say", on Wednesday a lengthy editor's note appeared on top of the original article in which the editor not only distances the WaPo from the "experts" quoted in the original article whose "work" served as the basis for the entire article (and which became the most read WaPo story the day it was published) but also admits the Post could not "vouch for the validity of PropOrNot's finding regarding any individual media outlet", in effect admitting the entire story may have been, drumroll "fake news" and conceding the Bezos-owned…