Are racism and hate speech permitted on Similar Worlds?

A post was recently made referring to Russians as "barbarians," adding that Russian tennis players who are playing at Wimbledon are "contaminating" it. These players are all neutral, and most of them live outside of Russia. Some of them have dual citizenships and live in Kazakhstan, Spain, Italy, USA and other countries, but the user responsible for this hatred and racism still objects to them playing at Wimbledon.

This has led me to question whether racism and hate speech are permitted on this website? Is it acceptable or encouraged to say vile things about a nationality or ethnic group? Or is it only acceptable or encouraged when the nationality or ethnic group is Russian?