One thing we don't want SN to become is a big engagement farming game.
SN is such a great experience because for the most part everyone writes about what they like, are interested in and want to write about without caring much about the numbers it will do. Sure we all hope our posts will get read and zapped and comments but I don't think many are solely doing it for that.
As SN grows, changes, tests new ideas and welcomes the next generation of stacker that is a standard we need to aim to keep.