The mobs that are place holders for Shraloks (and perhaps others in Kith) have their own factions. Others include "Bear", "Wolf", and I think even "Snake"
While I was camping Chief GanSharkok and waiting for him to spawn I wondered off and i saw a cliff spider. I decided to kill it cause I could use its silk for tailoring. Ive actually killed it twice both times but the first time I didn't see the faction hit. Then the second time it said, "Your Faction with GiantSpider got worse." I was like WTF so I asked my friend and he was like, "Oh crap...very bad." He then told me that if my faction standing with any animal got bad enough Druids would attack me on sight. He told me NOT to kill them anymore, and that it a serious thing. Its ashame cause I think they loot two spider silks everytime. Or at lest they did both times I killed it. So anywayse thats what the faction is. Basically be sure to not kill it and if you think you killed a lot of them go to a druid guild and con an NPC there. Although if you are an evil race and don't care about the faction hits I think that theses things are an excellent way to get spider silks for tailoring. I found both of them while camping the orc in that corner if you head right from the hh zone.
-Stumply 19th Lvl Mage (Yes I'm a gnome) GNOME POWER!!! Thouloxe Pells Server