Kill a dragon in Azeroth and don't report it to the IRS?
Go to jail.
Real jail or Azeroth jail?
All I know is that the time I spent training for the job as IRS auditor of Azeroth should get me some continuing education credits, or something.
Unless continuing education credits are a type of virtual currency too...
Wait, if I let frequent flyer miles expire, do I get a write off?