In online shopping reviews, consumers may adopt some dishonest or malicious methods to deliberately damage the reputation of the business. Here are some common ways： 1. **False bad reviews**: Consumers may post bad reviews that are inconsistent with the actual situation, exaggerate or fabricate product problems, and mislead other potential buyers. 2. **Malicious rating**: Even if you are basically satisfied with the goods or services, consumers may still deliberately give extremely low ratings to drive down the overall rating of the business. 3. **Repeated comments**: The same consumer may post the same negative comments multiple times, increasing the visibility of negative reviews. 4. **Offensive language**: The use of insulting or offensive language damages the image of the business and may even cause disgust among other consumers. 5. **False complaints**: Consumers may fabricate some problems that never occurred, such as failure to receive the goods, damage to the goods, etc., in order to blame the merchants in the comments. 6. **Taking advantage of competitors**: Some consumers may be competitors' “navy” and deliberately post negative comments to suppress the market position of merchants. 7. **Exaggerate problems**: Exaggerate minor problems, and even blame merchants for improper personal use or misunderstanding of product functions. 8. **Disclosure of privacy**: Disclose the merchant's private information or internal communication records in comments, harming the merchant's reputation. 9. **Malicious returns**: Consumers may claim in the comments that there is a serious problem with the product, but in fact they are only returning it for free or receiving compensation. 10. **False pictures or videos**: Upload pictures or videos that do not match the actual situation to mislead other consumers about the quality of the goods. These behaviors not only cause unfair damage to merchants, but may also mislead other consumers and affect the fairness of the entire online shopping environment. When merchants face these malicious comments, they can usually resolve the problem through platform appeals, provide evidence, or communicate with consumers. At the same time, the platform should also strengthen the review and management of comments to ensure the authenticity and impartiality of comments.