You also get to see which sites are pulling javascript from 20+ other locations. Sometimes it's an almost-fun game of 'hunt the snipe' to find the javascript source that will present the actual content to you...
It really does get quite amusing when you see "oh, two blocked scripts and one looks like their CDN, no problem" and temporarily enable them. Then the page reloads and 13 more scripts are blocked, so you make some reasonable guesses and it turns out the site won't play the goddamn video unless you also load some disqus comments, send a referrer header, allow something that looks like an XSS attack and sacrifice a goat.
I end up just leaving two browsers with different profiles loaded half the time, one of them tweaked to be as revealing as possible, for loading stuff I just want to see and don't want to play unblocking games with. Then when I close it all the cookies, localstorage, etc. goes poof. As he said, it's almost fun. Not actually fun.
