We have one guild of primarilly black people in HeRO, and that is LoA and I asked them as a whole, and Jase in person and they told me they don't even notice their skin color. I love how RO completely ignores race visually and takes into account personality and intelligence before making a conclusion to how the person is. You don't know who is white, who is black, yellow, etc, it doesn't matter.. and I think that is one reason why some people flock to RO as different races. They don't need to deal with the criticism of normal life.
As is, I have proved many times it does not matter the medium, humanity will veer to the side of racism and segregation. I don't trust HeRO to take it lightly.. and there are much better things we could work on then seperating HeRO into race groups.. like an SVN update.