節操 [jié cāo] n. Scruples, moral or ethical consideration that act as a restraining force or inhibits certain actions. This Internet slang term is often used humorously. When you say someone is unscrupulous you often mean he or she is mind-blowingly hilarious.
從此節操是路人 [cóng cǐ jié cāo shì lù rén] <Expression> Scruples have since been passers-by. This expression means making unconventional choices would distance you from the social norms widely observed by the consertative people. For example, when one develops a hobby of reading or watcing Boy’s Love anime, he or she may be more likely to appeciate unconventional ideas about dating and relationships.