I dont get it, it just and wanders the area, not targeting any mobs in particular, so unless i aggro them, I never attack ( and I'm doing in a Rogue with stealth, so kinda hard).
EDIT: I loaded the profile and it seems you are looking for Pinerock Stalkers, Pinerock Prowlers, Bristlefur Bears and Soothoof Hiilstriders right? You gotta add those targets on you profile. I added those here in the file attached, you should use that instead on your release. Also, this forum area here is for Custom Profile, this is a GRINDER profile.
I guess how many you get depends on many factors, like how many stars you have on your skill, ilvl, low/high pop, pve/pvp realm. I had 415 hides in a highpop pvp realm with 710 ilvl (got killed by players since I am lvl 102) and one star in the skill.
Finally, this is a quest area, so be careful, I saw a LOT of players (around 1:00am), but they help killing mobs and I got more hides. =D
Highmountain - Stonehide skining.xml