In case you missed the whole controversy, Blizzard was planning on changing the forums for Starcraft 2 and Cataclysm so that you had to post using your Real ID, which would display your real life name. People were in an uproar claiming this was a huge loss of privacy, and Blizzard reversed the decision. However, one group of around 1,000 people wrote to the ESRB on the issue, as in the past the ESRB has stepped in to fight for privacy. In a blunder, the ESRB exposed the email address of nearly all of the 1,000 people on the email. The thing was, Blizzard had already reversed its decision at this point, meaning the leaked email accomplished the writers unfounded fears.
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