Facebook has taken several steps to reduce false news and hoaxes. Currently, Facebook not allow advertisers to run ads that link to stories that have been marked false.
Now Facebook introduces an additional step. If Pages repeatedly share stories marked as false, these repeat offenders will no longer be allowed to advertise on Facebook.
This feature will help to find-out spreading the false and fake news. If a Page repeatedly shares stories that have been marked as false by third-party fact-checkers, they will no longer be able to buy ads on Facebook