Honestly I thought the mini-game was enough of a hassle for RMT seeing as they can't just click/gather bot like in most games. I'm not really a fan of this kind of fatigue, or at least not with these numbers. I can understand some measures against RMT but honestly gathering fatigue is not a great one. Slowing the rate at which they can gain items will do very little to stop them either way and is punishing players. You can only do so much before you start hurting the legitimate players.

The mini-game is enough of a measure I think, anything past that (especially penalties) hurts the real players.