Some Taobao stores with less than one diamond allowed to live stream, mainly because the Taobao live streaming platform has adjusted the conditions for live streaming applications. In the past, Taobao stores needed to reach a certain reputation level (such as one diamond or above) to open live streaming. However, with the rapid development of the live streaming industry, Taobao has now relaxed the conditions for live streaming applications in order to encourage more merchants to participate in live streaming and broaden the diversity of live streaming content.

Here are some possible reasons:

1. Taobao platform policy adjustment: Taobao platform continuously optimizes live streaming policies based on market conditions and merchant needs, encourages more merchants to participate in live streaming, thereby driving the growth of platform traffic and sales.

2. Diversification of live streaming content: Taobao live streaming platform hopes to attract more types of merchants to settle in, thereby enriching live streaming content and meeting the needs of different consumers.

3. Lowering the threshold: Lowering the conditions for live streaming applications can allow more distinctive and potential merchants to stand out and increase the competitiveness of the platform.

4. Technological progress: With the development of technology, live broadcast equipment and software are becoming more and more convenient, and merchants can build their own live broadcast environment more easily, thereby lowering the threshold for live broadcast.

5. The influence of live broadcast is expanding: Live broadcast has become a popular way of shopping. For merchants, live broadcast can help them increase brand exposure, attract potential consumers, and increase sales. The Taobao platform may hope that more merchants will participate in live broadcasts to increase the activity of the entire platform.

Although Taobao stores with less than one diamond can live broadcast, it should be noted that the reputation level is still an important factor affecting the effect of live broadcast. A lower reputation level may affect consumers' trust, thereby affecting the conversion rate and sales of live broadcasts. Therefore, while conducting live broadcasts, merchants still need to work hard to improve their reputation level in order to obtain better live broadcast effects.