This did not just simply come randomly, however. Players have been demanding and asking for World of Warcraft Classic for many years now. And Blizzard has likely learned from companies like Jagex that regained a huge portion of their player-base with the launch of Old School RuneScape, which prior to it had a 2006Scape private server. Similarly, World of Warcraft Classic/Vanilla has been around in the form of private servers for many years now and has been very popular. Even top players and streamers have been known to play on these private servers. The only issue is Blizzard were not the ones profiting from these ventures.
Before we talk about layering, it's important to talk about the sharding technology used in modern-day World of Warcraft. When a zone in the game becomes overpopulated, players will be seamlessly moved onto a different shard, which is essentially another instance of the same zone. It is important to note that you will still be able to play with your friends, because you are moved to the same shard when you create a party.
I've been playing the Classic beta a little (and I do mean a little, the new Diablo season has me in its grips hard) and I can't see what the big fuss is about. It's Vanilla. That's what it is, that's what it was, that's what was expected and that's what we're getting. Sure there are bugs, upgrades some people didn't want and upgrades other people did want but didn't get, but in the greater scheme of things that's such a small part of the whole, it's barely worth talking about. So why are some people so insanely intent on ruining others' fun?
FYI: If you’re returning to WoW after an extended absence prior to patch 5.0.1, it’s possible that you’ll have more than the maximum pet limit and/or more than 3 of a kind. However, this will be the only time that you’re allowed to surpass these limits. You will have to pare down your collection, eliminating your duplicates, in order to add new pets.