I do agree that these features are 'inspired' by other apps. Had they launched these in 2006 it'd be a copycat move. At this point, these are features that I

I do agree that these features are 'inspired' by other apps. Had they launched these in 2006 it'd be a copycat move. At this point, these are features that I think many users expect in something like digg. Facebook features have also been 'inspired' by other apps (i.e. twitter) and you can't argue with their growth. Digg has looked more like a forum and less like a startup for a long time, and this may be a catching up on lost ground, and a prelude to hopefully more innovative days.