banned for 10 days for what?

Atzoatl on global 820 posted a recruitment ad for polish players in polish language and i said it's a POLOCK recruiting to someone who asked. then i got banned for 10 days - thank you very fucking much.
let's go see what is offensive about the term polock, vs not quite german.
In the contemporary English language, the noun Polack (/ˈpoʊlɑːk/ and /-læk/) is a derogatory term, mainly North American, reference to a person of Polish origin.[1][2] It is an anglicisation of the Polish masculine noun Polak, which denotes a person of Polish ethnicity and typically male gender.[3][4] However, the English loanword is considered an ethnic slur.
so you're telling me that english people on an english chat should use the latter version of hte word instead of the former, definition? fucking dumb.