Would it be morally fair of Nexon to ban buyers/sellers of NX? I think not.

But not throw you in jail too for a day? There's a thin line between acceptable and overbearing.

Don't do the crime if you can't do the time.

You can read the signs saying jaywalking is forbidden. You don't bother checking what the law says the punishment is, you just go happily breaking the law because "what's the worst the cops will do?" You don't think that if they have so many signs about it, maybe they take it really seriously?

Anyway, sorry you had such a bad scare with the recent accidental(?) billingpp bans. However, convincing yourself it's "immoral" to ban for NX selling is not going to do you any good, nor protect you if Nexon decides to ban. (It may well be that they never will because it makes no business sense, and the rule is only there to absolve them of responsibility for scams. That's their choice, though). Even if every single player agreed with you.