The Fandom itself is called the Green Fanterns, usually shortened to just Fanterns.
Internet Counterattack: 10 hours before it was supposed to air, DC Nation was mysteriously pulled from Cartoon Network's schedule and replaced with HTTYD: Riders of Berk and Johnny Test with no warning at all. Word got out and angry Young Justice and Green Lantern The Animated Series fans began to rage on various forums and sites alongside one of the guys who worked on Green Lantern (and who had just done a USA Today interview talking about the show) and a newcomer whose very first short, Amethyst: Princess of Gemworld, was supposed to premiere the same day. In attempt to do damage control, Cartoon Network posted that DC Nation would be back in the January of next year... which didn't really improve matters due to the fact that the block had just come out of hiatus TWO WEEKS prior to this. As of October 14th, a petition has been made in an attempt to get the block back sooner and fans have begun to boycott the channel.
The producers are in on it too. They remind the fans to keep upping the number of required signatures of the petition and Giancarlo Volpe has taken to tweeting fake episodes on his twitter account every Saturday during the shows old time slot to help ease the tension.
One of Us: The creators interact with and occasionally egg on the fandom. Several are on Tumblr and make their own contributions to the fandom, such as memes and the aforementioned GL Death Star nickname.
Screwed by the Network: Unlike Young Justice, which was screwed even worse, it got to finish the first half of its season without interruption despite getting shifted from Friday afternoons to Saturday mornings. Then it was hit with the three-month break of the DC Nation block, and won't be getting another season (and neither will Young Justice) in order to make room for new DC Nation shows.
Even worse, how long a cartoon lasts on a network is based on how well its toys sell. GLTAS didn't actually have many toys at all to begin with because the WB, who still holds licensing on DC related cartoons, and retailers looked at the poor sales from the Green Lantern live action movie toys and refused to make any for the show under the assumption they wouldn't sell. Can we say "Screwed from the get go?"
What Could Have Been: Due to the series' untimely cancellation, we will never be able to see the Sinestro Corps or the Black Lantern Corps, despite nods to the potential of both being included in future seasons.
What happened to the Green Lantern ring Byth Rok had swiped from Kilowog was supposed to be covered in the second season. Also the finale scene of the series shows a Blue Lantern ring following Razer into the depths of space implying he would have potentially belonged to a different Core come his next appearance.