Not sure I buy it. My favorite language is Scheme (specifically, PLT Scheme). You'll find no macros below:

  (define (whitepage . content)
    `(html (body ,@content)))

  (define (para)
    `(p))

  (define (link prose url)
    `(a ((href ,url)) ,prose))

  (define (prbold text)
    `(strong ,text))

So the example from the Arc link

  (whitepage "Hello world!" (para) (link "Click here" "http://news.ycombinator.com")
             "for" (prbold "more stuff"))

yields

  (html
   (body
    "Hello world!"
    (p)
    (a ((href "http://news.ycombinator.com")) "Click here")
    "for"
    (strong "more stuff")))

which is a valid expression that PLT's web server will render as a web page.