An update for Guild Wars 2, set for release later this month, will rectify the lack of decent loot drops in the game.
After investigating complaints about the way loot is gained in Guild Wars 2, ArenaNet investigated the issue, and realised that some of the rules set up to determine if you qualify for loot were "unintentionally restrictive."
This loot dropping issue will be fixed with the release of Flame and Frost: The Gathering Storm, later this month.
Loot in certain areas of the game will also be updated, leaving certain places more rewarding than others. ArenaNet will go into more detail on this in the February release notes.