That wasn't it Anne, although I remember it.

The biggest issue I have with Elune being a naaru is the fact that she was able to mate and have children as well as being the progenitor of an entire species (the dryads) on Azeroth. As far as I can tell, the naaru are not in the business of procreation of mortal races or actually creating mortal races. Sure you have that eredar/dranaei picture up there, but they look a lot more similar than trolls and night elves.

The other major point againts elune being a naaru is that the naaru don't hide who they are or what they are. Sure there is that one naaru in oshu'gun, but that naaru was injured and stuck there, not out mating and then running away and hiding.

Heck, you wrote the KYL ON Elune, Malorne, and Cenarius - http://wow.joystiq.com/2011/07/17/know-your-lore-cenarius-malorne-and-ysera/

Let me punch some other holes in this KYL (and btw Shade, I love you, so none of this is personal, I've just come to disagree with the "Elune is a naaru" speculation, for reasons above and others I'm about to list):

all of the following is written with information taken off of the wowpedia:

-Elune tried to guide the night elves AWAY from the well of eternity, in direct contradiction to the naaru who re-ignited the sunwell for the blood elves
-Elune is female. Naaru are not known to have any gender
-Elune sings a song of peace at night, no known analog to other naaru
-Elune causes "a rain of solid moonlight to fall when her priestesses face enemies," no known naaru has done this
-Elune is directly associated with night and star and blue-white magic, again no known naaru analog to this. Elune is also a direct progenitor of the druids, utilizing nature magic and the aforementioned star/moon magic - while similar with the ability to heal, the origin of the magic emanates from different sources (Sure, you can argue it's the same source with a different name... but no other naaru makes claim to have a different source of magic other than "the light.")
-Elune directly made Aviana into a Demigoddess, no other naaru has bestowed that power on a mortal
-Elune directly intervened to save Tyrande with a shield as Azshara's palace was coming down, no known naaru has done this (although gameplay mechanics suggest that a naaru could cast a spell like PW:S or PW:Barrier, none have directly done this to save a specific mortal)
-Elune created the Moonkin - absolutely no known analogous act by any naaru

Regarding the naaru being evil, I will bring up this developer quote:

"...it is EXCEEDINGLY rare for a naaru to fall into a void state, and even rarer for a fallen naaru to be brought back into the Light. A naaru's fall into the void represents a catastrophic loss for the naaru and for the forces of the Light, and it is the saddest, most heart-wrenching event for the naaru to witness"

I am willing to admit there are some similarities between the naaru and elune, mainly the healing properties as well as spiritual bonds between the people who follow them. But the naaru act mostly like a Mr. Miyagi - trusted and wise advisers who occasionally heal the wounded, whereas Elune is a creator, an interventionist, a god who shapes and even creates entire races and species of mortals.

There are just far, far too many differences for me to buy into the "Elune is a naaru" hypothesis. Until there is some evidence that the naaru are capable of doing some of the things Elune has done, the story just doesn't add up to Elune being a naaru.

Sorry for the wall of text, just wanted to cover all the bases here.