The harms of negative online public opinion can manifest in various ways. Firstly, it can damage the reputation of individuals or organizations, leading to a loss of trust and credibility. Secondly, it can spread misinformation and false rumors, causing confusion and panic among the public. Thirdly, it can encourage negative emotions such as anger, fear, and hate, leading to social unrest and even violence. Furthermore, negative online public opinion can affect the decision-making process of businesses and governments, potentially leading to inappropriate policies or decisions. Lastly, it can have a significant impact on the mental health of those targeted by the negative comments, leading to stress, anxiety, and depression.