[mollusk]

>How would the raw concrete metaphor relate to UX / Web design?

I'd say it would be making the page look like bare HTML. Black on white typography. Blue anchor links. Monospace fonts (or arguably default serif font would be more raw).

[masukomi]

agreed. the "brutalist websites" linked on that page aren't brutalist at all. they're just the same crap we were producing in 1995 before we knew what we were doing or had any good tools. They are almost all completely devoid of the simple practicality of brutalist architecture.

[hatsunearu]

http://bettermotherfuckingwebsite.com/

This is what i'd call brutalist.