This is an icon in Tencent's signature, which is used to appeal or spread some information. Just like on 5. 12, Tencent introduced/missed/displayed the icon "ribbon" in the signature to mourn the people who left. /3 15/ and /miss/ are the same thing. In order to let more people know that 3. 15 Consumer Rights Day is just, but what is shown in /3 15/ signature is not clear to me. You should be able to see it with 3GQQ, and of course you can also see it with the official version of computer 09.