https://en.wikipedia.org/wiki/Roblox_ban_protests_in_Russia
One of the sources is titled: “Two National Bolsheviks were detained at a protest against the blockade of Roblox in Tomsk, a city in Siberia” 
Also features an official called “Vladislav Grib”, “grib” means “mushroom” lmao
Nazis groom children on Roblox into becoming nazis, so its possible that’s why. I think TrueAnon may have done an episode about it.