While the style of e.e. cummings is definitely heterodox, it isn't a perfect analogy in this case because:

(a) his style is internally consistent with itself, instead of being a scattering of random mistakes,

(b) while his style is different, he doesn't do anything that majorly impedes readability, and

(c) he uses the style for a particular artistic effect, instead of just using it because he is too lazy to press SHIFT.

"E. E. Cummings", actually.

http://www.gvsu.edu/english/cummings/caps.htm