[aperiodic]

Well, let me throw my voice in, too. If I didn't have Readability, I would not have read your article. Out of curiosity, I reloaded the page and tried reading it as was originally presented, but it felt taxing, and I switched back quickly.

The problem, I think, is that the spaces between letters are much smaller than the internal negative spaces of the letters. The little horizontal flairs on the sides of many letters in Museo exacerbate this issue. This ends up making it really hard for me to recognize the letters which have no internal negative space, most notably i, t, and r, since they tend to bleed into their neighboring letters at this small size.