As with most situations, there is reasoning behind the matter of MobCoins, particularly on how hard it is to obtain them. They are meant to stand as a free alternative to buying perks, a means to justify the ends for people who otherwise couldn't afford perks. If they were simple to earn, there would be no initiative for those who do have money to buy the perks. This may sound like a selfish or grimy play on the part of the server, however it's just a balance that ensures Jartex stays in good health. Those who play avidly create an active environment within the server and over time become less reliant on paying to move up. On the other side of the coin, are the people who "pay to win", active and not active alike, provide Jartex with the funds to be, well, Jartex. If the MobCoins are too hard to earn, just buy the perks with cash. Otherwise, have some patience, sometimes there's a pay-gate to instant gratification.