I Hate Narrow Web Pages
Even the CSS gurus constrain their web pages to a narrow strip on my 1920 pixel wide screen.
For most web sites, simply turning all the styles off (in Firefox, View => Page Style => No Style) makes the page more readable. But that can also make a site less easy to use.
Some pages use tables, have the widths hard coded, and I often give up on those with disgust unless the material is really worth reading. At least, the web designer didn't know better. Lord, forgive them, for they know not what they do.
But for those who proclaim themselves to be experts of CSS and consider it their path in life to preach CSS to the masses: shame on you! How can ye escape the damnation of hell?