And deep in the text is the explanation how it really spread: "A Facebook spokesperson told BuzzFeed News" ... "we are working to remove these types of groups

And deep in the text is the explanation how it really spread: "A Facebook spokesperson told BuzzFeed News" ... "we are working to remove these types of groups from the recommendations we show people." That means to me, Facebook algorithms recommended that material to other users for years and especially during the last months! And they are still "working to remove." Damn. Where clicks and "user engagement" are the most important metrics, who cares about the negative impact to the society.