I don't see anywhere in the rules where racism is even mentioned meaning it's not a big deal in bitcointalk. I prefer looking at a case where someone could call me names like "Pajeet, Habibi, curry muncher, white trash etc" just similar to one trying to say am stupid, foolish, asshole etc
It's just a stranger who doesn't know me trying to describe who I am. Why would I be offended if a stranger tried to abuse me?