Jeff Horwitz and Deepa Seetharaman, reporting for The Wall Street Journal (Apple News+ link):
“Our algorithms exploit the human brain’s attraction to divisiveness,” read a slide from a 2018 presentation. “If left unchecked,” it warned, Facebook would feed users “more and more divisive content in an effort to gain user attention & increase time on the platform.” […]
But in the end, Facebook’s interest was fleeting. Mr. Zuckerberg and other senior executives largely shelved the basic research, according to previously unreported internal documents and people familiar with the effort, and weakened or blocked efforts to apply its conclusions to Facebook products.
Polarizing divisive content is to Facebook as nicotine is to cigarette makers: a component of their product which their own internal research shows is harmful, but which they choose to increase, rather than decrease, because its addictiveness is so profitable.
A 2016 presentation that names as author a Facebook researcher and sociologist, Monica Lee, found extremist content thriving in more than one-third of large German political groups on the platform. Swamped with racist, conspiracy-minded and pro-Russian content, the groups were disproportionately influenced by a subset of hyperactive users, the presentation notes. Most of them were private or secret.
The high number of extremist groups was concerning, the presentation says. Worse was Facebook’s realization that its algorithms were responsible for their growth. The 2016 presentation states that “64% of all extremist group joins are due to our recommendation tools” and that most of the activity came from the platform’s “Groups You Should Join” and “Discover” algorithms: “Our recommendation systems grow the problem.”
Those recommendation algorithms are the heart of the matter. In the old days, on, say, Usenet, there were plenty of groups for extremists. There were private email lists for extremists. But there was no recommendation algorithm promoting those groups.
The engineers and data scientists on Facebook’s Integrity Teams — chief among them, scientists who worked on newsfeed, the stream of posts and photos that greet users when they visit Facebook — arrived at the polarization problem indirectly, according to people familiar with the teams. Asked to combat fake news, spam, clickbait and inauthentic users, the employees looked for ways to diminish the reach of such ills. One early discovery: Bad behavior came disproportionately from a small pool of hyperpartisan users.
A second finding in the U.S. saw a larger infrastructure of accounts and publishers on the far right than on the far left. Outside observers were documenting the same phenomenon. The gap meant even seemingly apolitical actions such as reducing the spread of clickbait headlines — along the lines of “You Won’t Believe What Happened Next” — affected conservative speech more than liberal content in aggregate.
That was a tough sell to Mr. Kaplan, said people who heard him discuss Common Ground and Integrity proposals. […] Every significant new integrity-ranking initiative had to seek the approval of not just engineering managers but also representatives of the public policy, legal, marketing and public-relations departments.
So Facebook’s “Integrity Teams” can’t enforce integrity if it upsets the side of the U.S. political fence that is, quite obviously, more lacking in integrity.