Good, f2p though is not unethical.
When players come to devs and say "I want to buy in-game items, how much?" and the devs tell them "How about no?" and the players go "Alrightythen, black market here I come". And the devs like "Hm, maybe we should've sold them the items".
Very unethical, right? I think it's very ethical because at the very least the transaction is secure, and cheaper for the player, because the dev control the supply.
I bought more gold with WoW token, when I have ever bought off gold traders.
So maybe the people who pay in f2p understand this and should be commended for using money for what they are supposed to be used - fun?