GameSpot was not so nice to Global Agenda -- a 5.5 out of 10 was fired against the game earlier by the gaming website. However, that didn't stop the Global Agenda community from doing some digging and turning up the reviewer's in-game character. A character that only had six hours of play time attached to it, no alliance, and no agency for conquest matches.
The resulting evidence was provided by Global Agenda's player statistics system -- a pretty robust system that allows anyone to pull up a character's statistics simply by typing in their character name. Once this evidence came to light, the community began to send e-mails to both the reviewer and GameSpot's Justin Calvert, who has since removed the review. Calvert has apologized (post confirmed by Hi-Rez Studio's Michal Adam) to the Global Agenda community and Hi-Rez Studios, and has reassigned the review to a new writer.
GameSpot's internal policy is to spend 30 hours on an MMO before publishing a review.
[Thanks to Antilogic for the tip!]