Why do Yan characters use pandas? What is the reason?

It is found on the Internet that most of the Yan characters are based on pandas. Why? The following is what I have compiled about why Yan Wen uses pandas. I hope you like it!

The reason why Yan Wen uses pandas comes from a series of advertisements.

The panda's face is followed by various terrorist attacks.

Panda emoticon pack

This set of panda emoji pack videos quickly swept the world, including Chinese mainland.

This is what happens to the crossed panda. This is the origin of everything. The virus spread after P entered Jin Guanchang's face.