Excuse me, the author of Zhihu is anonymous, and the private letter requires a name search first. How can an anonymous letter be private?

1. First open Zhihu, and click the avatar button in the upper right corner, as shown in the figure below.

2. Then in the drop-down menu, click the Settings button under the Tools menu, as shown in the figure below.

3. Then in the setting interface, click Messages and E-mails, as shown in the figure below.

4, and then in the open page, click the edit button behind the private message settings, as shown in the figure below.

5. Finally, in the opened page, set who is allowed to send private messages according to the actual situation, as shown in the figure below.