The reason why "the wife of lucky cow and cat on WeChat official account" is called "stepmother" is because in the traditional culture of China, stepmother is often described as a person who is indifferent to children. This metaphor may be because the official WeChat account gives people a feeling of low attention and unpopular content, similar to people's attitude towards stepmother. The naming of the official account name of WeChat is not necessarily related to the actual situation, and sometimes it is just to attract attention and spread.