Blogs sure. This is a reference. Seems silly to potentially compromise the UI for its primary purpose just so random people from HN can better read it from the toilet.
Even if it was a reference, the same criticism about left-right scrolling would still apply, at least if you're using the combination of resolution and DPI that people like me do. In fact, if it's meant to be a reference, then it's even more important to make it ergonomic.