In the past two days, Xiaohongshu has been frantically flooded by foreigners, and Chinese and foreign netizens have laughed and scolded and mingled on the app, but behind this ostensibly prosperous Internet "scenery", it is actually a rare key moment in business history that is gradually approaching. A company with 170 million users and a market capitalization of $100 billion in the United States is at an unprecedented critical juncture of life and death, a situation that may not have a prece...