The number of things that everyday sites embed in their pages is phenomenal. The Ghostery extension gives a good idea about how much crap gets loaded.
In an article about content blockers, http://www.imore.com/and-hour-safari-content-blockers-and-im... has 13 separate, third-party scripts/etc trying to load.
6 tagged as 'analytics', 4 tagged as 'advertising', 3 tagged as 'social widgets'
That is a ridiculous amount of extra requests, extra data, and of course, tracking.
The advertising (and since the obsession with 'cloud' or 'SAAS', analytics too) industry has been fucking end-users for YEARS. Now users have a credible way to fight back, and suddenly it's "not fair?".
If you want advertising to fund your site/blog/whatever, use an ad network that doesn't try to digitally fuck me every time I visit your site.
edit: grammar