My picky question is - why so thin? The 'blurred' examples show the font broadening through the 'blur', which is why thinner fonts work well here, but is there a scientific basis for this? I would assume that this is good for light text on a dark background. For the opposite, I'd assume a thicker font would do better (text would become 'thinner' as your eyes blur?). Also, if there is any damage/weathering of the sign, Id assume a thicker font would cope with this better.
My picky question is - why so thin? The 'blurred' examples show the font broadening through the 'blur', which is why thinner fonts work well here, but is there a scientific basis for this? I would assume that this is good for light text on a dark background. For the opposite, I'd assume a thicker font would do better (text would become 'thinner' as your eyes blur?). Also, if there is any damage/weathering of the sign, Id assume a thicker font would cope with this better.