Facebook users are less likely to share fake news stories when Facebook adds a "Disputed by [fact-checkers]" warning label to the stories. User Leonary1726heron, 30 Jul 2019
Facebook users are less likely to share fake news stories when Facebook adds a "Disputed by [fact-checkers]" warning label to the stories. User whatsthatbutt, in the Fuck the alt-right subreddit, 30 Jul 2019
Cleaning Up Social Media: The Effect of Warning Labels on Likelihood of Sharing False News on Facebook Of course if the fact checker is biased then all bets are off. User bfwilley, in the Politics without suppression subreddit, 29 Jul 2019