It's not self-censorship, it phonetic spelling.

People say stuff like ahh, shii, biatch, muggafugga in real life, and it's still widely considered to be profane in context.

You just don't like Black culture, and look down on Black people for their dialects.

Demanding dictionary spelling is about as language-conformist as you can get; you're not even good at the mental gymnastics you're trying to do.