The function of post bar is to bring like-minded people together. The establishment of post bar depends on search engine keywords. Whether it is a popular topic or a minority topic, you can accurately gather a large number of good netizens, show your self-style, make friends, and build a unique interactive platform for "topics of interest". The catalogue of Post Bar covers society, region, life, education, entertainment stars, games, sports, enterprises and other aspects. It is the largest Chinese communication platform in the world, providing a cyberspace for people to freely express and exchange ideas, thus gathering like-minded netizens.

The little red book platform is very interactive, which is the biggest advantage. Users can post videos, pictures and other content or communicate with others through the comment area and follow the publishers. Users are very sticky and highly relevant. By recommending friends or planting grass on the platform, users can enhance their trust in commodities and facilitate commodity trading. Xiaohongshu Mall is to drain users to the mall through social means to realize social e-commerce. Young users are younger and have a large base. The users of Xiaohongshu platform are mainly young people, with advanced concepts, easy to accept new things and strong desire to consume, which can stimulate consumption to a certain extent. There is a lot of traffic, little red book has a lot of traffic, and there are also stars. The presence of well-known stars has attracted its fans to join the Little Red Book platform and expanded the number of its platform users. In addition, it also brought traffic and topicality to Xiaohongshu, and expanded its popularity and reputation.