If you do a View Source on Reuters.com main landing page, it's script file is a single line that's 1,300,000 characters long. And every time you land on a page it tries to dump 1,300,000 characters of script on you (on top of the multi-MB videos it auto-loads) [and the pop-ups]
Most major corporate websites are that way. All written by algorithms with massive JS downloads and huge 64bit hash keys on every <div>. Tracking 64bit click numbers on each element and dumping all the calculation on the user.