[asoneth]

You jest, but I find it easier to visually parse code organized using parentheses, quotes, commas, and brackets compared to code organized using parentheses, parentheses, parentheses, and parentheses. The latter approach is simple and elegant but makes it hard for me to read someone else's code.

I think the first reason is that the distinct characters provide a kind of visual checksum which makes me (slightly) more confident when initially matching a closing character to the correct starting character.

The second reason is that each character has a conventional meaning which makes it possible to form an initial guess as to its purpose.

Having said this, I freely admit this opinion may be colored by my only (paid) experience writing Lisp which was for a sprawling 20 year-old AI codebase mostly written by professors and graduate students who were often learning Lisp as they went.