Well i actually have just Played eFlyff,
i actually was never hacked, i don't have anything to say against their user support, since i once lost access to my email (which i didn't even remember de email address i used) And after a week, got my account back.
I generally think eFlyff is way TOO inbalanced... People who buy gpotatos have so much advantage of those who don't, just watch the "Q Amps", that fucked even more the Economy, and gave more advantage to gpotato buyers while leveling.
It way seems gPotato just wan't to get full of money, i'm not saying that getting profits of what they do isn't correct, actually i think that's good, but they'r not doing it in the best way, since they are ruinning the game (which already is fucked) by giving more and more Advantage to gpotato buyers... In some way they have to fix this... However the people that buy gpotatos will be mad on anything that gPotato tries to do to balance the game... and they'll way lose money.
So yes... they'r fucked.