On October 31, Weibo, as well as several other major Chinese social media platforms including WeChat, Douyin, Zhihu, Xiaohongshu, and Kuaishou, announced that they now required popular users’ legal names to be made visible to the public. Weibo stated in a public post that the new rule would first apply to all users with over 1 million followers, then to those with over 500,000.
You would have to be crazy to use your own identity in chinese social media. One careless word and you might disappear. Not that you are really safe there even under nickname with no other precautions. If they really want to find you they most likely can.