I'm surprised there hasn't been a topic made about this yet considering how much it seems to be blowing up.
In short, a week ago Blizzard sent a Cease ad Desist order to a private World of Warcraft server named Nostalrius, and the server accordingly shut down. At the time Nost had something like 800,000 registered accounts and 150,000 active players. Well, it's blowing up in Blizzard's face now, with significant numbers of people cancelling subscriptions and preorders, and "heavy hitter" YouTube personalities like JonTron and Boogie2988 making rant videos. There's even been mentions of it in Forbes and the BBC. A petition on change.org asking for legacy server support recently reached over 100,000 signatures. Most of all, it's been over a week since this started, and Blizzard STILL has not responded.
I understand Blizzard are legally in the right here, but the thing is people have been asking for legacy servers for close to a decade. It's obviously something with significant consumer demand, and Blizzard are smugly and stubbornly refusing to meet that demand. It seems like things are reaching a tipping point regarding customer relations here. Blizzard's apparent attitude can be best summed up by the video at the end of this post, and now people are finally waking up and getting mad, it seems.
Considering the successes of Runescape '07 and Project1999 it just seems completely ignorant and pigheaded for Blizzard to respond to a decade of consumer demand with "You think you do, but you don't."