not like taking ideas from stories, more like taking ideas from movie and gaming franchises(things with a no-derivatives copyright on them) and making them into items
personally i think it's wrong, theft is theft even when the one you are staeling from doesn't know it^^: if someone is trying to make some sort of profit or not giving credit it's wrong
personally i think it's wrong, theft is theft even when the one you are staeling from doesn't know it^^: if someone is trying to make some sort of profit or not giving credit it's wrong