The most stupid decision is to allow anything but the Orca, Beluga and Dolphin to have anything but economy class. I really don't see ocean freighters turn into cruise ships by just putting in nicer cabins. But imagine the uproar as this decision cause the profitability of some get rich quick scheme to drop. Maybe certain ships that can install business cabins (FDL, AspX, Imperial Ships) which look more classy to have business cabins installable.
I think is okay to make money as fast as you can if thats how you want to play, I will just silently judge you and your mostly harmless Corvette (jokes). But seriously, is your game but also realize many players had to earn their credits with more difficulty, and it isn't unfair to you, or anyone else, that if the Devs felt whatever scheme you are using is a bit of an exploit and aim to curb it.
