I don't. RPers should be allowed to have fun but at some point what is more important? Roleplaying the actual story or trying to make the story fit what they want it to be?
Nightborne are Horde. High Elves/Blood Elves are Horde. Pretending to be an Alliance High Elf or an Alliance Nightborne is up to them but they have to be aware they are pretending the story and the world are other than it is.
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My OCD makes me wish that the Nightborne were called Dark Elves
but I disagree about the Night Elves being Drow.
The Night Elves are Wood Elves, just purple ones.
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Except for that time Ion was flat out asked about it, he
laughed and said High Elves ARE Blood Elves.
But he's just the game director and was asked in the deep distant past of four weeks ago so his view can be discounted.
And IF his comments have to be interpreted in any way, surely it is as 'High Elves are totally coming and we are waiting for the right moment to introduce them' rather than 'haha you keep making this request yet the race is already there'.
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It really isn't debateable. High Elves were almost certainly considered as an Allied race. You yourself say they were the quintessential Allied race. I reckon they may have even been the first to be considered.
Yet they were rejected and the Void Elves created to take their place.
I can't see what you cannot grasp the obvious here. The Void Elves, which YOU say make no sense, were created specifically to answer a demand for the Thalassian model in the Alliance that Blizzard could meet WITHOUT giving them a straight up Blood Elf clone.
It's self-apparent , it's obvious, Void Elves means no High Elves because if they were ever going to give you High Elves, they would have done so instead of making Void Elves.