Hire a team of 4-5 people , maybe even interns with a below industry average salary ( say 25-30/year per intern ) . This comes out to 100-150k a year . Have these interns monitor all the RMT websites and manually set the exchange rate of Royal crystal to gold lower than what the RMT websites are offering. I PROMISE you that on the first day you do this , you will make enough money to pay off your interns for the next 1-3 years . This will cause the gold sellers to go out of business and Rmt’ers to redirect their funds into your pockets . Sure the botters can always go lower but with the limited amount of ways to make gold , it won’t become sustainable for them in the long run. Hell , even if it only works for a few months , those few months would have kept the majority of your player base happy and grateful . Now the next part in very important so listen up . Take a portion , maybe 10-20% of the funds acquired and allocate it towards a proper team that works on a proper bot banning method . Also get some GM in the game that can ban bots in real time .
In return for the AMAZING idea that will net you MILLIONS of dollars , all I expect in return is a permanent 20% honing buff on my characters ( I pitied my weapon for 17-18-19 and almost at pity on 20 , my mental is shattered )
Sincerely, The dude that helped your team get noticed by Jeff Bezos