Products which optimize for it become worse. People who optimize for it become less happy.
It also seems to generate runaway feedback loops where most engagable people have a) worst individual experiences and then b) end up driving the product bus.
Did they do it because their social team knew that article would piss people off? Or does "sort by engagement desc" generate this magic?
Moloch cares not; he will subvert them to producing pollution anyhow.