I doubt anyone remembers, but back in the old B.net community, I remember when it was announced that Diablo 2 would have a PvP toggle and that you could only PK players who had it effectively "turned on" and everyone shit a brick in Ogden's Tavern.
Still cracks me up to this day. A lot of the old farts stayed in D1, thankfully. Or moved to Ultima Online.
Diablo 3 looks like shit more and more every day though. It's like an inferior version of Torchlight.
I'd rather get Torchlight 2 or Grim Dawn. Both are basically what the gaming public expected Diablo 3 to be anyway.