To answer your question since no one on this website doesn't even understand anything at all about why people do not like Void Elves nor are they the High Elves wanted in the first place.
Problem with Void Elves is they don't have a good lore base story like High Elves. Only Backstory we got from them is they are just group of random exiles from Silvermoon who studied the Void only to then get turned into blue/purple elves but with void magic. They are not even the Silver Covenant that we know for so long nor are they the Warcraft 2 High Elves at all. Only High Elf that is Warcraft 2 Quel'dorei High Elf is Alleria. But here's the thing one void powered elf doesn't make up for the rest of the race. In fact it feels very forced and pretty much asspulled.
Also another thing about Void Elves is they just a Blue/purple elf race that the color scheme has been done to death so many times. Its starting to become very generic and very dull. Also if Void Elves were High Elves then why aren't they like Alleria? Again this is also another reason why people do not like Void Elves.
The fact is its really hard to even play Void Elves in terms of roleplaying if your just another blueberry elf with no backstory. You may come up with one as a Blood Elf but not a true High Elf. This is problems that we are having with the Void Elves and its gotten worst due to Antis saying that they are great thing to game where clearly they are not. It just goes to show that World of Warcraft is really starting to lose the Warcraft 2 touch already.