Not a bad idea at all +1
But aside from the Hunter job what would other jobs get?
Fisher - Less time fishing?
Woodcutter - Faster woodchopping?
Farmer - Provided an extra stack of a random seed - melon, pumpkin, wheat, etc?
Digger - Free shovel? During every 10 levels or something get a more valuable shovel?
Builder - idk
I'm forgetting all else.