These swindlers will use any underhanded means to cheat people out of money.
Tips
history
Originally praise — from 《礼记·大学》: 君子无所不用其极, meaning a noble person 'leaves no effort unspent' in self-cultivation. Modern Chinese flipped the connotation entirely.
mistakes
Today this is almost always negative — describing immoral or extreme tactics. Don't use it as a compliment for hard work; use 全力以赴 instead.
