So last night an application appeared on Facebook that let you link your GW2 account to the social networking site linked your Facebook account to GW2's Facebook page.
At the very least, 400 gems were offered (I have no idea how they were claimed) for doing so, tho the forum post linked above claimed other rewards were being offered.
As the ArenaNet poster indicated, this was a test of a new application. And as the rest of the posts indicate, it was not ready for prime-time and was abused by people linking fake FB account names and generating gems ad nauseum.
A source who tipped me off to this is claiming that two friends took advantage of the system to generate 250g and 160g.
This appears to be the second attempt to push GW2's popularity through social media after the failed attempt to reach a million likes on Facebook. As of this posting, GW2 still only has ~964288 likes on FB. It should be further noted that while the original campaign had some very passive awards associated with it, this campaign appears to be trying to provide a personal incentive to each Facebook member, as opposed to a large reward at the end. Gems were not included in the original offering.
Anyone willing to make an image capture of the top-link for posterity?
Edit: Additional link to reddit about this.
Edited by MazingerZ, 26 September 2013 - 10:55 PM.