What does it mean when someone edits a personalized signature on QQ:-)?
This means smiling. Professor Scott Farman, who studies artificial intelligence at Carnegie Mellon University in the United States, suggested on the electronic bulletin board of the university that the symbol ":-)" should be used to indicate jokes and ":-()" should be used to indicate problems that need to be taken seriously, so as to avoid misunderstanding in network communication. Since then, the network face characters have been rapidly popularized and used.