Halona
By using the highly offensive word, and I quote: "nigga" as means to insult another person you are in direct violation of 8 C in the terms of usage.
Section 8: "Prohibited Conduct. By using the service you agree NOT to:"
Subsection C: post, upload, or distribute any User Content or other content that is unlawful, defamatory, libelous, inaccurate, or that a reasonable person could deem to be objectionable, profane, indecent, pornographic, harassing, threatening, embarrassing, hateful, or otherwise inappropriate;"
Anyone even remotely familiar with the English speaking world should be aware how insulting that term is. 'Speaking the way you know' is not a valid excuse. In most European nations expressing certain right wing ideals is explicitly illegal no matter if the person in question is aware of it or not.
8 C caters for the point of view of a "reasonable person". In the eyes of any "reasonable person" your use of the word, and I quote: "nigga" is "objectionable", "harassing" and "hateful", not to mention "otherwise inappropriate".
Thus I advocate for the immediate and permanent closure of your account on this site.