oofun is kindof right. But not completely. Farming can also include sitting in the same tournament all day and winning multiple times. Because, think of it as irl farming, just in-game. You are just raking in the wins.
I think there should be a new system for buying stuff, maybe using real money as an alternative for toricredits, all farming occurs in game, so if you cant earn TC in game there will be no farming.