Diablo II developer David Brevik in an interview with Inc Gamers.
In the "Honestly, I think that they did a lot of the things the best they could, it was a very different game than I would have created, the team and personalities, the people, the talent and all the design philosophies of the people that worked on it in Irvine, we called them Blizzard South, those people have their own style and the their own way they like to design. It was very, very different from the Blizzard North.", Brevik had some relatively mild criticisms of Diablo III, saying,
He went on to point out design designs he (and fans) didn't like, such as loot system ("Having all of your powers work off your main weapon and things like that, to having blues that are more powerful than yellows.")
He also noted, "When Blizzard North shut down they lost a ton of experience with why the Action RPG works and what about it works. That’s really difficult to recover from. They didn’t have the experience of people that knew it well."
This did not go over well with Blizzard South, with Diablo III technical artist Chris Haga posting on Facebook, "Suddenly I feel like I was just thrown under a bus."
This opened a floodgate of hostile tweets by other members of the team, highlighted by a tweet by game director Jay Wilson angrily dismissing, "F--k that loser."
Jay Wilson arrived from Relic Entertainment in 2007, seven years after the release of Diablo II. Brevik now works at Gazillion Entertainment.