The choice of font for the blog's body text doesn't lend the author any credibility on this topic. For what it's worth, I tried both syntax highlighted and not

The choice of font for the blog's body text doesn't lend the author any credibility on this topic. For what it's worth, I tried both syntax highlighted and not - and the former results in a measurable improvement in productivity. I believe experimenting with tweaking one's tools is worthwhile in most cases.