Behind the "Negative Reviews Tsunami" in E-commerce: Unveiling How Online Water Armies "Destroy" Stores"Boss, today's sales have 'exploded'!" Song Changqing (pseudonym), the owner of an umbrella factory in Shangyu District, Shaoxing City, Zhejiang Province, also runs an online store. He opened the back-end of his online store and found that the store's best-selling umbrella had sold over 300 units in just a few hours...