Silverpine Forest - Nightlash not spawning correctly

Nightlash http://www.wowhead.com/npc=1983 is supposed to spawn when you kill a random amount of rot hide gnolls near you, while on the quest=437. Currently she's just spawned all the time without the player having to kill any gnolls.

By deadrogy (477 – 8·9) on 2008/01/01 (Patch 2.3.0)

once u go to the the dead field, start killing rot hide gnolls until nightlash appears in the middle of the field. I did this quest two times, at the first time nightlash appeared after killing 2 rot hide gnolls but at the second time i had to kill at least 8 for her to appear. i hope this helps u!

By inscrutibob (834 – 2·11) on 2008/09/20 (Patch 3.0.1)

I know the thing about random numbers is that they're random, but it took me 14 dead gnolls before she showed up.