Frictionless sharing without proper curation could kill Facebook. Friction naturally encourages the crowd-sourcing of curation - by having to click a share button or fill out a simple form I'm forced to think about what I'm sharing and the context to present it in. Knowing what songs my friends are listening to right at this moment isn't very useful information. Having a friend reminisce on their wall or tweet about about the one time they heard that song live, in-person and the epic good times that followed - THAT is truly "sharing", that is the "why" and not just the "what" that makes sharing addictive.
Can a bot or algorithm augment or emulate the magic of crowd-sourced sharing? Or will it throw Facebook into a Myspace-esque clusterfuck?