You make it so you can only make 2-3 trades per day, plus nuking Chinese IPs from your servers with extreme prejudice.

So, ban an entire country from the game... got it. I have played games that allowed trades, it 100% opens up a real world p2w economy. There are ways around pretty much every way you can try to block it.

China has their own version.l of the game. If their laws won't do anything about gold farmers Bungie should take the law into their own hands.