The main reason I think so little people hunt in Gunthak is that it is out of the way. The other reason is that it has a bit of a worse ZEM than Dawnshroud Peaks (the current hot 30 - 40 spot), not by much, maybe just a 5% difference, but there is one (I think the natural zem is 85% for all zones, plus the bonus some zones have). I also think that there are a great deal less players that own LoY than Luclin as well. I remember some classes (monk in particular) doing boycotts on it.
Another reason why this zone is underused is that it is a small bit more difficult than Dawnshroud Peaks or another mid level hunting ground. The mobs here hit slightly harder and have a bit more hp than in DSP (by no definition hard though), and there placement is a bit more troublesome than a zone with wanderers.
Despite all this, I came here in the 30's. Nice non-crowded zone, good variety, nice cash drops, and better than average zem. I would recommend it.
A man said to the universe: "Sir, I exist!"
"However," replied the universe, "That fact
has not created in me A sense of obligation."
-- Stephen Crane