Why can't I see my friends' dynamic comments in qq space?

It may be that my friend has opened the dynamic permissions of friends, so I can't see the comments of QQ friends. Method for opening permissions; Take OPPO mobile phone operation as an example:

1. First click QQ on the mobile phone page and log in, as shown in the figure below.

2. Then click my avatar on the QQ message page, as shown in the figure below.

3. Then click Settings, as shown in the figure below.

4. Click Privacy, as shown in the figure below.

5, click on the friend dynamic permissions settings, as shown in the figure below.

6. Click who can leave me a message, as shown in the figure below.

7. Finally, you can see that some friends have this function, which means that friends can't see their comments unless they choose, as shown below.