Sneak peak of dual blade

Actually, at this point that seems like a pretty reasonable suggestion. They could have just left the thief class alone, but they added a new branch. In order to fund this new branch, they need to separate them from normal characters. They were complaining and bitching about not making money off pirates (their fault, release more CS weapons for them and you'll make money). It only makes sense that if they're going to make a new adventurer, they'd need to make sure their money that went into designing it doesn't go to waste.

Remember, unlike GMS, they have perma CS items over there. By making players buy new outfits for each character, they get more money.

I just wish GMS didn't decide to rip off their players by doing the same thing when they don't have such a system. I'm hoping they'll take my suggestion I sent in to remove that shit, but I doubt it.

...It could just as well be for the very reasons you said above.
They have a different job system than adventurers, even though they most likely are adventurers.
They have a different storyline than adventurers....
etc.