They just told me that you would die.
"If you ever star with 150 extra XP, you will die."
Same goes for other cheats:
"If you ever mod the rules, you will die."
"If you ever start with extra gear, you will die."
"If you ever be creative, you will die."
I feel like Wheatley...
Or like Jeremy Clarkston in the Top Gear Botswana episode.