For those who don't it just makes Diablo less enjoyable.
We've been there before, or somewhere like it. When Diablo 3 was launched in 2012, it had an auction house in real money that players could purchase and sell their drops. In theory, this existed to head off the fraud and cheating that plagued trading within Diablo 2 Diablo IV Gold. In order to steer players to the auction house, Blizzard reduced the drop rate of loot in the game to the extent that equipping your characters with loot became a monotonous chore, and the game as a whole felt unrewarding to play. After the auction house was unpopular, it was removed and drop rate were increased in 2014, Diablo 3 instantly became more fun, even before the advancements of The Reaper of Souls expansion elevated it to classic status.
A lesson to learn: While it might seem reasonable to attempt to make money from Diablo's treasures, but once you begin doing you're removing all the fun from the game. The same is true for Diablo Immortal and it is noticeable before you get to the endgame due to the fact that it is a fundamental part of the game's gameplay. The drops of loot are less important, while character progression is artificially controlled and spread over too many systems and are too sluggish and too granular. It has been more artfully hidden than it was at the time of the release of Diablo 3, but it's an equally boring slog. purchasing a battle pass, or paying a huge sum for legendary crests isn't much help as paying for an excellent item drop will never be as thrilling as just getting one.
I'm not certain if there is a way of separating the fundamental elements that make Diablo fun from the mechanics of free-to play monetization. If there is, Blizzard and NetEase have not found it. They've come up with a mobile Diablo that's sleek fun, entertaining cheap Diablo 4 Gold, and even quite generous at first. However, if you've spent enough time playing, there's no way to deny that the heart of the game has been ripped out in pieces, sliced up, and returned to you in pieces.
