rac·ism
/ˈrāˌsizəm/
noun
prejudice, discrimination, or antagonism directed against a person or people on the basis of their membership in a particular racial or ethnic group, typically one that is a minority or marginalized. "a program to combat racism"
It's interesting how much salt these "no racism" posts generate from the overwhelmingly PPC userbase here.
You can. Go make your own "PPC only" discussion board if that's what you want. Of course you won't do that. You people can't build anything on your own, you can only hijack things other people built.