Ex. A black man not identifying himself as a black man but just a human being with a different personality.
When you say "not identifying himself as black" in what context are you referring to? In real life, unless you can "pass", you are automatically identified as black by your appearance. Online it's optional to self-identify by one's race, and I'm sure many people do not.
And when you say "different personality", what do you mean? Different from what?