donor 2882

Hi there
I'm new here.
Does anyone have any info on donor 2882?
it says he's from African ancestry partly - but :i'd like to know how much?
I heard that sometimes the African genes skip a generation , and I'm very light and so is my whole family , so it's somthing that worries me a bit....
also, does anyone know what it means that he didn't answer questions about ADD etc.?

thank you and good luck to all