You might think that WoW doesn't have a neutral faction -- every player, even the once-neutral pandaren, must pick a faction before advancing very far in the game. And while that's technically true, Blizzard clearly didn't count on the patience of Doubleagent, who just hit level 80 without selecting a faction. What makes this difficult is the fact that panadaren can't leave their starting zone without deciding to join the Alliance or Horde -- so Doubleagent has worked his way through the levels by picking herbs for experience. If you think this sounds particularly tedious, that's because it is: Doubleagent started this trek back in September 2012.
So will Doubleagent eventually reach level 90? And will he ever be able to escape the Wandering Isle? And shouldn't there be some kind of achievement for this? We'll have to stay tuned to find out.
In the meanwhile, read up on Doubleagent's quest on Reddit or watch his leveling video, which gives you an idea of how he's managed the trip to 80.