> The poster seems to be implying that this effect is prevalent across the web Because it is. For sites with dynamic content (social media, news, etc.), it do

> The poster seems to be implying that this effect is prevalent across the web Because it is. For sites with dynamic content (social media, news, etc.), it doesn't happen. But commercial sites trying to convince you to use their product, they're incredibly common. It's not always a fade in exactly like this site does it. Sometimes it's content sliding in from the side. It's incredibly pervasive on SaaS marketing pages.