How does qq prohibit others from commenting?

Hello, the setting method is as follows:

Search for "QQ Space" in the computer browser, log in to your account in official website, and then click "Gear" (that is, Settings) in the upper right corner of the space, and then click Space Settings, as shown below.

Then click on the comment message to prevent harassment, as shown below.

Then just click on yourself, and others can't comment on you!

At the same time, you haven't set a designated person, then choose a friend who can comment, and then save the settings after you finish, as follows

Hope to adopt, thank you!