Comment by qvrjuec

So at what point does the metric used for user engagement cross a threshold for 'addiction'? Wouldn't incentives to drive this metric up across the board to increase revenue outweigh the pressure to maintain a healthy relationship with the Facebook Family of Apps™? Regardless, I still can't see the motivation for Facebook to act in a way to ensure the user is healthy, only to ensure the user is engaged at an optimal level for Facebook and not the user.