The nuts buy things. Things that people want. The huntmarks aren't meant to be a constant grinding thing, just a daily couple of minutes each investment if you want the stuff locked behind it.
If you don't want what the currency purchases.. uh.. go do other stuff?
Personally I enjoy the little boost to my daily leveling activities. 2 or 3 minutes gets me a few chunks off my bar while I wait for queues to pop, gather mats, and talk to my friends.
Not everything has to be an efficient treadmill to cap.