[Viliam1234]

> If they really mean it, they'll accept that they will make less money as a result of this change.

First, it's not sure whether they will actually lose money. The problem with clickbait is that you learn relatively little about the user. Suppose someone clicked on hundreds of articles about why everyone hates Donald Trump... what does this teach about the user? How does it allow you to show them better targeted advertisement? If instead they will click on stuff written by their friends, you will learn what hobbies they share, and then you can sell them things related to the hobbies.

Second, just because Facebook changed a value of some variable quickly overnight, doesn't mean they can't slowly change it back later, if it indeed turns out to be a loss of profit.