"I shamelessly admit that all the goods in my shop are fake." Recently, a netizen named "School Forum" posted online to reveal the "underground rules of Taobao that I know". In the post, the cosmetics, underwear, pet food and other popular commodities sold on Taobao were suspected by the poster. Nowadays, online shopping is very popular, and the varieties of online shopping cover various aspects of life. Once posted, it aroused much attention from many netizens.