Its possible to have 3 independent mist tanks by having 3 different accounts and purchase any minimum amount of CE for each account. Doing so upgrades the account status to "paid customer", allowing an independent mist and exemption from several sharing restrictions enforced on free accounts. Having 3 free accounts on 3 different computers is just technically possible, and DOES NOT make it any more legit then trying to farm 3 accounts on the same machine... your grasping at straws, and you know it.

Also, given the structure of equipment and character progression, theres absolutely no benefit to having multiple characters unless you actively operate in 2 different guilds, or share the account with someone else. Genuinely operating 3 characters increases the cost almost 3 fold, and consumes additional time and energy to heat level equipment verses focus leveling 1 item on your normal runs. Instead, most people would just use the extra mist to do T1 runs, and send all the loot to a main in order to boost advancement without having to rely on CE. Thats decreased revenue, with an increase in server operating costs due to the continuous load.... not good for anyone involved except the cheap skates.

Your only mad because you don't understand the intentions of the energy system as a whole. The approach is an alternative to the Cash shop system used by most F2P games, and instead meters the game play at a consistent rate rather then make players increasingly more dependent on the cash shop the further they progress, or attaches a high maintenance cost to your current progress. Your energy consumption reflects how much you use the game (and by extension server resources), and are granted an allowance that equates to roughly free 2 hours of game play every 24 hours. The Energy cost attached to crafting is made to weed out serious players who are capable of contributing to either the economy (by being a part of it) or the CE market (by purchasing CE), from the free loaders who don't contribute to the trade market or refuse to spend real money to help support the game.

Once your past the initial confusion, the system is surprisingly fair. You are given enough mist to conduct a modest play session, can use CE if you want to binge, and still make enough profit to participate in the game economy. In fact, the only time an energy shortage is a problem is if you waste it on constantly resurrecting yourself on a run. Obtaining CE needed for advanced crafting only requires a moderate amount of time if your only using ME for the elevators. Your only penalized for making bad decisions, or if you try to abuse the system for personal gain.