The server's farming is heavily based on leech and gachapon... there should be other ways to farm... I've met half a dozen friends who quit playing because they couldn't make money, or because there were no leech buyers, or because it was always the same method... I'll leave a suggestion here: Boss coins ~ rewards for exchanging ws, cs, css 20%, some earrings, or other things like that. Jump daily quests, more events throughout the year... with all due respect, but it's already December 20th and the free market is still Halloween themed... I'm a fan of MapleRoyals, just like many other people, but you, the staff team, urgently need to give the server something special, because there's a lot of competition coming.
There are numerous ways to make money on this server you don't have to limit yourself to leeching, you can mage farm by yourself which is highly encouraged by a lot of players because it's the most consistent money-maker, you could do APQ on several characters a day if you don't feel like mage farming, you can do bosses like HT, NT or VL for decent drops, you could even GPQ for Assassinate 30 books and get a split from those with your guildies, farm RG and numerous other methods because I can't remember all of them.