3px of padding makes all the difference in the world
He has a point that many interface designers will appreciate and others rankle at as nit-picking.But I was struck by the irony of this particular observation being made via a blog that uses a body typeface with ever-so-slightly but definitely too-narrow tracking (letter spacing).  Or maybe the kerning data is off.  I would have it loosening by about 1/200em overall, with the most noticeable improvement becoming apparent on adjacent vertical strokes.EDIT: the samples of this face, "Oxygen", that I see at the creator's site (Vernon Adams) don't suffer from the same issue so perhaps something has gone awry in the conversion to WOFF.