[TalnSG]

I hate to add to your confusion, masaegu, but the example you used in the question is a special case and the rules

ONLY in the instance of e.e.cummings would the intials and last name(surname) not be capitalized. e.e.cummings was a very unusual writer and insisted that his name not be capitalized, as Columbine explained.

Even in the most formal of writing, especially if it is a discussion of literature, it should be kept in lowercase. To do otherwise would might make the reader think you were unfamiliar with him.