I mean elder god killing comes with the necessity of slaying both their bodies and their incorporeal consciousness, right? That, and mostly, because it'd be confusing to have a bunch of posts going like; 

"Hey, you! Wisp person, do that thing!" 
"Wait, you mean me?" 
"No, the other nameless, identical wisp person over there!"
"Me?" 
"NO. You." 
"You know, I feel like all these labels are starting to be really harmful to our outlook upon ourselves as a whole. It is rather devaluing. As such, I prefer adopting the term 'it' from now on, so we can remain as equals."
"Ooh! Can I be an attack helicopter?"
"Good grief..."

Yes, I cringed too, while writing this. I'm sorry for your eyes.