What farming covers here
Gold on your realm, profession materials by the stack, and hours booked for whatever you name. Gold does not apply to a self-found character and the page says so rather than taking the order; the levelling, profession and hourly services all still work.
Careful rather than fast
Farming on a Hardcore realm is the same work done without the option of dying, which is slower and costs more. A booster gathering materials here pulls one mob at a time and walks the long way round, because the character carrying the stack is a character that cannot be replaced.