My space talk can't reply to others.

It is the setting of QQ space, for the designated friends to see.

Maybe comment review has been turned on. Just open the space settings and change the settings.

Specific practices are as follows:

Open the QQ space webpage.

There is a gear icon in the upper right corner of QQ space, even if the icon is set in the space.

Put the mouse on the icon and a drop-down menu will appear. Click Permission Settings.

After the page opens, click the "Anti-harassment" setting on the left.

This page is about QQ, space, message board comment settings. If the default space is "designated person", it should be changed to "everyone" or "QQ friends".

If viewing is open, click on the right to close it.