I mean it really was a single wave. V4 or whatever version it was fundamentally changed the way Digg worked in a big way overnight. It wasn't even the same thing anymore. Sure there were some holdovers but it's tough to compare the two like this.
With the exception of third party apps, Reddit still more or less works the same for the average user as it has forever.
Eh, I used to think like that, there was a time when it was popular to hate on U2. But really there are a lot of legitimate assholes out there who are actively making the world a worse place. His philanthropy is aggressive and attention seeking but the receipts are there and I'd much rather have someone channel all this energy and platform into pro-human rights than anti which is becoming increasingly popular these days.