> there's nothing wrong with capital letters or all-caps In the transportation world, all-caps is known to be harder to read than mixed-case in fixed-message s

> there's nothing wrong with capital letters or all-caps In the transportation world, all-caps is known to be harder to read than mixed-case in fixed-message signs: http://skeptics.stackexchange.com/questions/5892/is-all-caps-hard-to-read http://skeptics.stackexchange.com/questions/5892/is-all-caps... All-caps is also generally less legible than all-lower-case: http://en.wikipedia.org/wiki/All_caps http://en.wikipedia.org/wiki/All_caps (in particular reference 7, Tinker, Miles A. (1963). Legibility of Print. Ames, Iowa: Iowa State University Press. p. 65. ISBN 6316674.) My point is that it isn't just a matter of taste. There are known, quantified ways in which all-caps is worse. Ditto Comic Sans, if you read another response to your post.