People realized when the numbers were gone, they had been using them to decide whether to like something. I certainly didn't expect these tendencies of people saying, 'I literally don't know what to do [without knowing the metrics].'

Ben Grosser created a browser extension (used by 1000s of people) that removes the numbers from Facebook like/friend/share counts and also recently published a paper examining the impact of metrics in the journal Computational Culture.

via How Numbers on Facebook Change Behavior - The Atlantic.