After QQ friends are deleted, do the comments in the space remain?

It will always exist, QQ is different from WeChat, WeChat will disappear, but QQ will always exist until you delete it yourself.

How to delete your comments and messages in other people's QQ space?

First open the QQ space of the other party, and then click this button on his homepage, as shown in the figure below;

2. Then find the one you commented on in the other party's talk list, as shown below;

3. Move the mouse to the reply button below your comment, as shown in the figure below;

4. At this point, a delete button will appear on the right. Click the delete button, as shown in the figure below;

5. In the pop-up window, click OK;

6. In this way, this comment can be deleted, sometimes it is really practical;

7. However, if it's news from someone else's space message board. Enter the other party's message board, find your own message, click the drop-down button on the right, and then select Edit;

8. Then delete your message and click Publish.