Effective altruism is based on the core belief that all people count equally. We unequivocally condemn Nick Bostrom’s recklessly flawed and reprehensible words. We reject this unacceptable racist language, and the callous discussion of ideas that can and have harmed Black people. It is fundamentally inconsistent with our mission of building an inclusive and welcoming community.
— The Centre for Effective Altruism
The reason why I don't say "the n-word" as you did is because it can be misleading. I have seen people using it to quote somebody else who just said "negro". So to me saying "the n-word" would violate another (to my mind much more important) norm:
"Be honest.
I try to follow rules I disagree with. However if I violated any rules here then at least they should have been clearer, so I appreciate the ongoing effort.