My brother was recently added to QQ by a mysterious person. It's a trumpet. One plus, my brother began to scold him. He was very poisonous. He also stole my brother's space.
Simple. His behavior has been suspected of a crime. You can report it completely. It is easy for the network police to lock his IP and obtain evidence easily. This kind of IQ cyber crime was solved in a day or two. If you feel troublesome, Baidu "locks IP", and many hackers take such jobs, which will cost two or three hundred dollars.