There's no justification for it. Even if I don't spend a dime myself doesn't mean it's not sick that I paid for this game and every expansion pass and still have items blocked off from me.
It doesn't matter what items your selling.
It doesn't matter how cheap they are.
You're taking advantage of people and it's wrong. It's not a debate.
-
Ffxiv a realm reborn does the same thing. You pay a subscription and there are micro transactions for vanity items. It's rather popular in most mmos. I don't see this as that big a deal tbh