It's good that he is upfront about it, but this surely shouldn't be taken as a general advice, since everybody has his own preferences. So this really shouldn't be a blogpost, but rather a "Contributing Guidelines" section in whatever projects he maintains.
I firmly believe the author's stance should be the default policy of just about every open source project. I don't even write my own code anymore, I sure as hell don't want to deal with your code.
Give me ideas. Report bugs. Request features. I never wanted your code in the first place.