I'm not exactly certain when the Wow gold classic event is functioning as planned. At the moment, Stormwind is completely overrun with ghouls which are rampaging through the streets and slaughtering everything that moves. The auction house, vendors, and even the lender are unusable--that might be frustrating for players that, when the event is really reside, are just trying to go about their day to day business.
On the WoW subreddit, players have also found ways to attract the zombie infestation out of capital cities, making whole areas of Azeroth uninhabitable. It's funny to see how much the mirrors a real zombie plague, as slain players and buy wow gold NPCs equally change to ghouls so their numbers are constantly growing.