In Baidu, I know the answer. Many women put QQ on their own initiative, telling you to add her. Why they do this is a bit confusing. I hope your god.

This kind of content should be considered illegal and can be deleted by complaining.

In fact, it is impossible to determine whether it is a man or a woman. This is just a propaganda tool.

Some will remind you that this friend has reached the upper limit when you add it, and you can add another one. If you add friends, the information will receive some publicity.

There are also some things you should see in his signature after adding friends. Some attractive things will be written there for you to take the initiative to do, some for traffic, and some for bad content.