What is the annual festival card of Taobao?

Taobao annual festival card is a kind of publicity card with the slogan of Taobao annual festival on it, but it is not an official activity held by Taobao.

this card is usually mailed to users, and its main purpose is to induce users to click on the URL link on the back of the card, thus inducing users to spend. In this process, Taobao officials will not carry out publicity activities by mailing cards, so the card has nothing to do with Taobao officials, and it is a means of telecom fraud to induce consumption.