#1 5/16/2014 12:13:00 PM
#4 5/16/2014 12:30:00 PMYou're correct! The anniversary buff does not influence the Legendary drop rate from Kadala or Horadric Caches. It's good to keep this in mind as you adventure through Sanctuary over the duration of the anniversary celebration.
I hope everyone is enjoying the buff, killing lots of monsters, and finding tons of loot. Happy anniversary, Diablo community!