I *think* the content is OK, but I had to give up reading it :-(
Black backgrounds just don't work for my eyes (brain?). The text is
blurry to begin with, and after a short time I just can't read it at
all, everything swims before my eyes.
I know different people have different preferences, just wanted to
let you know that the pages are unreadable for *me*.
I *think* there is a reason why almost no commercial web sites have black
backgrounds, but I don't have any references...
A quick Google search doesn't show any consensus, although I percieve a
slight bias *against* black backgrounds (that could be my selection, of
course :-)