This is precisely the problem with attempting to categorize "fake" news - individuals each have their own nuanced definition of both "fake" and "news" that may

This is precisely the problem with attempting to categorize "fake" news - individuals each have their own nuanced definition of both "fake" and "news" that may be entirely contradictory to someone else's definitions. All these efforts (Facebook's solution and third party ones) will do is create even deeper echo chambers.