i'm not saying that he dosn't know that the world shouldn't be said,being a big part of his audience from the US
but knowing that something is offensive for another "culture" and finding it offensive enough to nowt saying it by yourself just for that is another thing entirely
basically,in the US that word is so demonized that only an impenitent racist would use it in public..it's ingrained in your "values" that that word must not be spoken ever..like here it's for blasphemies in public...for someone from europe that only speaks english though,that barrier is not there,and you can see people using it jokingly or in a light way,otr just a traight ignorant one.