1. Marketers: In order to promote products, some marketers will post videos on Aauto more quickly, and then let the audience add their own WeChat for follow-up marketing activities.
2. Friends: Some people get to know some interested people faster on Aauto, and then let them add their own WeChat, so that they can communicate and interact better.
3. Internet fraudsters: Some people will impersonate others on Aauto faster, trick viewers into adding their WeChat, and then commit some fraud.