Why not? Its fun

With so many people participating, it was beautiful

From wikipedia

Tankie is a pejorative label for communists and those who align with Marxism–Leninism ideology. More generally, the term “tankie” has been applied for those who express support for one-party socialist republics that are associated with Marxism–Leninism, whether contemporary or historical.

They usually praise communism and ignore the flaws and horrible practices of things like the U.S.S.R