Devon's anecdote is along the lines of my position. I'm sure there's a paper somewhere that counts parenthesis versus whitespace errors, but I haven't yet read it. I have programmed Lisp and Haskell (at two extremes), and from this experience at least much prefer whitespace to parentheses. In addition, I rely on design theory (esp. Tufte et al on his web site) that reducing clutter aids comprehension, and delimiters very much seem clutter to me.
Jason Catena
