An article on the Washington Post consumed 300% of my CPU. And I had ad-blocking software running.
I was simply reading the article when the fans on my MacBook started ramping up. Soon it sounded like a hurricane was coming. I opened up Activity Monitor and sure enough the Post article was using 300% of my CPU.
I understand the predicament most publishers are in - trying to squeak by on a percentage of a penny per page view. But you aren’t helping the experience when what should be a simple web page turns my computer into a hot mess just so you can serve some crappy ads that I don’t care about.