Frustrate them and, well, the competition is only a click away. Where the organizational structure of the site matches the way the viewers think. Why my website has almost no graphics and no frames. Moreover, most browsers are not the very latest version, so they may not be capable of handling all those latest features. And anyway, html is not very standard, not with companies engaged in a battle to the death to ensure that their browser is better than the others, with proprietary features.
User be damned, is their philosophy.
Well, we put humans first, technology second. Go for simplicity, elegance. Go for content and speed. So speaketh Jakob. So speaketh Don.