As Ornyx once said, people should be allowed to discuss game related matters, which are what High Elves being playable are all about.
Toxicity isn't needed nor should be encouraged. Therefore I don't see it as wrong when they 404 the threads due to too many toxic posts.
If people can't stay on topic or get jebaited then that's their fault as well and not just any one side.
EDIT: Anyways, got into Beta so now I can experience some BfA High Elf-ness on my own accord
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Why aren't Nightborne called "Ni'dorei" and instead Shal'dorei?
The prefixes mean something different, not necessarily pertaining exactly to the prefix describing the Elves.