The second lesson was about money. Real-money trading, or RMT, means buying gold or items with real cash, usually from outside sellers who farm the game with bots. It drives up prices for everyone else and has dogged both the modern game and Classic for years.
Blizzard says Season of Discovery taught it which controls it could build to manage the economy. The team added systems, some hidden and some that players can see, that govern how key resources flow into and out of the game. The studio credits those tools with a much healthier economy and far less RMT during the season.
For Forever, Blizzard says it has several new detection systems in place, but it won’t go into detail. It described fighting gold sellers as a cat-and-mouse game and said explaining too much would only help the other side. Its message to players was blunt: the team is watching closely, and buying gold isn’t worth putting your account on the line.