One reason I use blockers such as RequestPolicy Continued?
Well "a picture tells a thousand words." :


This is example of web junk that we have to deal with.
As you can see there are actually 96 objects being blocked just by RequestPolicy Continued in this example.!
No offense to the the site (its actually my Add-Ons page at Sandbagger's now at the webserver of wife's Cake site) its just an example of the massive crap that trys to load on pages that I don't need.