A lot of this happens due to a basic lack of understanding of how documents flow at best, pure negligence at worst. Ads and lazy loaded content are being droppe

A lot of this happens due to a basic lack of understanding of how documents flow at best, pure negligence at worst. Ads and lazy loaded content are being dropped into elements without min heights causing everything to just suddenly shift down. The other thing some of these sites do is take raw lazy loaded json and render a whole view (who would have thought, an on-demand slideshow is jarring if you didn’t account for how it’s gonna just be plopped onto the page). They are also dynamically formatting dates, author names, titles, plopping in client side a/b testing, etc. Some people really should be fired honestly.