There may be many reasons why Alibaba's return rate shows 0.

First, the return rate is an indicator of how often users use a product or platform again. If it is 0, it may mean that users have no intention to use it again or have not found functions that meet their needs.

Second, it may be due to poor user experience, such as slow website loading speed, unfriendly interface design, etc., which makes users unwilling to visit again.

In addition, it may be because competitors have provided better alternative products and attracted original users. In order to increase the return rate, Alibaba can improve the user experience, increase product functions, and provide more attractive promotions.