In any game at all. What is a strange thing you almost always need to do.
For me, it's in every MMO that has a tracking icon for gathering mats. I'm a big Alc nut so I NEED to pick every last herb I find on my mini map even when I'm just trying to hike to another town or quest area. Great on my pocket but crappy on my time management.
I spent a total of almost four hours last night stuck on my alt gathering demon grass because it was just THERE!
I feel your pain I have to grab every collectable herb,wood, and ore I see. Been that way ever since I started playing.