Yuck. The parenthesis are much easier to read than the boxes with lots of padding. Only useful for beginning programmers. Anyone using lisp-based languages will quickly be able to read parens easier.
(Plus some IDEs have coloring based on matching parens and depth, like Racket's IDE, which keeps the same lisp code structure but adds subtle visual enhancements.)
(Plus some IDEs have coloring based on matching parens and depth, like Racket's IDE, which keeps the same lisp code structure but adds subtle visual enhancements.)