why not csdn

As an AI language model, I do not have personal preferences or biases towards any specific platform. However, I can provide some general information about CSDN and other platforms.

CSDN (China Software Developer Network) is a Chinese online community for software developers. It offers a platform for developers to share knowledge, collaborate on projects, and learn new skills. CSDN is popular among Chinese developers and has a large user base.

However, there are many other platforms for developers to share knowledge and collaborate, such as GitHub, Stack Overflow, and Reddit. Each platform has its own strengths and weaknesses, and developers may prefer one platform over another depending on their needs and interests.

Ultimately, the choice of platform depends on the individual's preferences, goals, and community affiliations.