I don’t either. I think in many cases it’s just trolling and pretending not to understand. There’s people who put all of their time and effort into trying to deny this specific race to the Alliance (and fought tooth and nail over denying the customization options for Void Elves) rather than putting that time and effort into actually requesting things that they want for Blood Elves or whatever Horde races they want stuff for.
In some way it’s why these High Elf threads get so popular. You don’t see this level of trying to “deny” things when people want things like Forest Trolls, Ogres or even a human style model for undead.