http://rationalwiki.org/wiki/Eric_S._Raymond

Now, his attitudes on HIV denialism and IQ and race don't deal with engineering, but they're pretty objectionable. And, you know, we can get good engineering writing and thinking from a lot of places. ESR doesn't have a monopoly on writing about operating systems. I'd rather promote the writers who don't carry around a ton of wrong/distasteful baggage.