First, the account problem
Baidu knows that there is a certain relationship between the question and answer and the level of your account. When answering questions, try to use some graded accounts to answer them, and always believe that graded and unrated accounts will definitely have different effects. And try not to bring links in your answers.
Second, the content contains forbidden words
Don't take forbidden words in the content, such as some topics such as shopping and medical health are particularly sensitive. When promoting these brands, we must pay attention to some forbidden words in the industry.
Third, the content has the nature of advertisement
Some answers have too many advertisements in the propaganda, which is obviously suspected of being soft, and this kind of content is easily deleted by Baidu system. So try to be popular in your answer, don't appear too obvious advertisements, and try to be sincere in your reply.
Fourth, the content has contact information
Try not to send WeChat, qq, email, illegal pictures, telephone and other contact information in your reply. As long as you bring contact information, your account will be deleted if it is not strong enough. This must be remembered.
The above are the reasons why questions and answers are always deleted when Baidu knows how to promote brands or products, and some matters needing attention. Of course, there may be some other deleted factors, so I suggest you pay more attention to the operation, sum up more experience and avoid touching the question and answer minefield.