In OSRS, before bonds (their equivalent of tokens) were released, there was a strong gold industry, but most people who bought gold did so by buying bonds on the main game, then finding a dedicated 'swapper' who'd exchange their RS3 gold for an appropriate amount of OSRS gold (taking a cut for themselves, of course). I wonder if a similar system will pop up in classic wow
You create a meta where you're constantly buying gold. Gold is very important in vanilla consumables are the difference between being a hardcore raider and being a casual. The notion that wow token doesn't create inflation is incorrect. By giving every player the ability to buy gold you're increasing how much gold your average player will have. the 1% rich player who has the ingame gold to buy these tokens was not trading with that gold. But now they buy ingame time and the gold that was sitting in their pocket is now being used to trade, buy items, herbs, etc. now there's more gold in circulation. Now everything costs a little bit more gold. And if you're a player who's not buying wow tokens with real life money you have to farm just a little bit longer to compete. That's why wow token is bad.
That's not to say that everyone has an unrealistic vision of what vanilla WoW was like. There were already plenty of people on the WoW Classic forums pointing out that perceived bugs are just recreations of the original game. And as noted before, a flaw to one player is a key component of the original positive experience to another. WoW Classic will surely please plenty of purists in spades. But this goes to show that it won't be for everyone who has fond memories of the game circa 2006.