Not the GP, but I'd be happy enough to do that. Then again, my personal computer is a ThinkPad T41 I bought online for like $100 recently when my T420 died, so maybe I don't count? But honestly, so little of my quality of life comes from tech advances (though I do love me some computer science, and work with computers every day).
I think it's largely because the page is white. How do you color someone beige/brown in a black-and-white medium? Specifically black and white, not grayscale.
A question to you: What is it that makes them drawn specifically white, other than eyes? Is it only the fact that they're on a white background, or is there more there that I am missing.
I do enjoy all of the above mentioned games/VNs, but I think Portal is ideal because of its length. I am doubtful students would have the leisure to finish any of the other games. Also, much as I love them, calling F/sn and Tsukihime "games" is a bit of a stretch. "Multimedia text" is probably more accurate. :-)
I doubt slower typing would help, but some capitals, consistent punctuation and less use of random colours and font resizing on your blog would go a long way towards making your point in an understandable way.
I'm sure that post has interesting content, but so do many others, and they make their points in a much more readable way: for instance, try looking at the essays on paulgraham.com. A pleasure to read, and think about.