It means commercializing your Douyin account and making money with it. The usual form is a combination of online and offline, that is, you cooperate with some merchants, help them sell goods, and then you get income from it, or you can open your own store. Douyin itself may be for entertainment, but now it has become a tool for many people to make money, and many people are advertising on it, so Douyin is more commercialized.