It&#x27;s tech hipsterism. Plus, it&#x27;s a quick-and-easy way to create a hierarchy in an industry where somebody who&#x27;s been working for a decade has the same job title, dresses the same, and looks basically the same as somebody who&#x27;s in their second year. &quot;Oh, you still use jQuery? Yeah, I pretty much just write pure JS.&quot; It&#x27;s ridiculous tech dick measuring (which is to say it&#x27;s par for the course when you get three nerds together in a room).<p>It&#x27;s the exact same impulse that says you&#x27;re not a real dev if you use language X or framework Y.