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!]