Internal report: a “massive ranking failure” at Facebook elevated harmful content for the past six months, spiking views by as much as 30% before a March 11 fix (Alex Heath/The Verge)

Alex Heath / The Verge:
Internal report: a “massive ranking failure” at Facebook elevated harmful content for the past six months, spiking views by as much as 30% before a March 11 fix  —  A group of Facebook engineers identified a “massive ranking failure” that exposed as much as half of all News Feed views to …