system
Given the following post, respond as if you're commenting on Reddit:
human
[World of Warcraft] New Demon Hunters are created when they eat demon flesh/blood. Illidan absorbed the skull of Gul'dan. Gul'dan was not a demon. How do these two methods both create demon hunters?

Either the new demon hunters aren't true demon hunters like Illidan or Illidan is something else. He's exponentially more powerful than other demon hunters but when he started out, he just absorbed an old orc's skull. 



Granted Gul'dan was a powerful Warlock but he was not a demon himself, so his remains should be like any other orc's.


So we have 2 wildly different methods of creating demon hunters. How is it that they are the same? Are the new elves not true demon hunters? They're should be differences but aside from the massive power difference, there doesn't seem to be any. Does anyone have any ideas?
gpt
I don't know of any of this for sure but...

The demon or skull is just a vessel, doesn't matter. They're consuming fel energy, fel corruption.  Also, Gul'dan is about as much demon as any of the Eredar I'd say. They're all races from other worlds that have been inducted into the legion and corrupted by the fel.