I don't think it's wise to censor a post from LW just because it contains some politics. However, I'm not sure I see any content in this post related to rationality.

To me, the post is basically saying "Someone wrote a book. Here's a summary of what they wrote." My response: Okay, so what?

That said, I did find this post useful in my "rationality-training", because when I read it, my first instinct was to think "Aha, so I was right not to send my money to Africa", but then recovered from this by noting that I was falling into Yvain's trap of covering up the real reason I did not want to donate (i.e. that I am selfish).