In Internet forums, there are several strategies for using multiple accounts to support oneself and attack others: 1. **Self-response**: Use multiple accounts to comment and like one’s own posts to create the illusion of more support. 2. **Fake opponent’s views**: Post extreme or outrageous opinions through one account, and then use other accounts to attack, leading others to believe that the opponent’s views are not supported. 3. **Group tactics**: Conspire with others to use multiple accounts to support a certain view or attack a certain user, creating the illusion of "consensus". 4. **Information manipulation**: Use multiple accounts to spread similar information or views in different posts to influence the direction of public opinion in the forum. 5. **False identity**: Disguise as different identities (such as experts, ordinary users, etc.) to enhance the credibility or offensiveness of speech. 6. **Expert certification**: Use one account to pretend to be an expert and support one’s own views, while other accounts follow suit. 7. **Comment frequency manipulation**: Through frequent comments and interactions, increase the popularity of a topic in a short period of time to make it seem more popular. 8. **Deliberate provocation**: Use one account to post provocative remarks to guide others' emotions, and then use other accounts to siege. 9. **Distraction**: Create multiple controversial topics to distract attention from the main issue, thereby protecting one's own views from being discussed. This behavior is prohibited on many platforms and may result in the account being banned, affecting the user's reputation and the healthy development of the community.