It’s the copyright on the intellectual property. All the cities, the mobs, the class abilites, and such is what the case is built on.

Every person who has played wow has their own opinion on when it was the best. Classic, BC, Wrath, Cata, Mists, Warlods, or whatever is next. Private servers cut off people who might still be playing WoW to do this day so they can continue on when they imagined. or felt it was at it’s best.

If even 10% of the players…