GamePolitics reports on the complaint, which claims that the publisher maintains a "harmful virtual environment to many of its customers by forcing them to follow the game's sneaky and deceitful practices." Estavillo alleges that the "calculated slow pace" of the game makes turning quests in take longer and thus generates more subscription revenue for Activision Blizzard.
If that wasn't enough, Estavillo also subpoenaed actress Winona Ryder and Depeche Mode's Martin Lee Gore to testify on his behalf regarding alienation. He explains that his health issues, which apparently include OCD, agoraphobia, depression (and more), mean that he "relies on video games heavily for the little ongoing happiness he can achieve in this life."
Estavillo had previously sued Sony after being banned from PSN and also has another suit against Microsoft and Nintendo, for his Xbox 360's Red Ring of Death and Nintendo's disabling of the Homebrew Channel in an update. Perhaps he'll have more luck suing over the design of a game in which millions happily pay to participate.