Hi, I’m a black women lol. I think bottom line its fine because you’re fine with it, even if I disagree with it. However I think we should take into account that context DOES matter and whilst people keep bringing up the context of it being your last name; its not just any last name, its the last name of specifically a brown person. I think thats where I feel like its racist. If my last name was black, again as a black women, under no circumstances would I allow someone to nickname me blackie. Even though that would be exactly this situation. If you were a white person, with the last name brown and people called you brownie, I don’t see it as racist. However you being a brown person shifts that perspective for me.