[ChikkaChiChi]

For years Comic Sans has been recognized as being one of the most readable fonts. It even is considered to be a preferred font for those dealing with dyslexia (http://www.luzrello.com/Publications_files/assets2013.pdf).

This seems to be a classic case of form vs. function.

[judk]

Unreadable fonts are preferred for dyslexic readers, because the uncomfortableness of the font inhibits scanning (error-prone for dyslexics) and promotes reading-letter-by-letter. So there is a tension.