[nauticacom]

> it's fun for designers to make up their own UIs

It's not just "fun," it's necessary to create an optimal user experience for every particular use-case. Have you ever played two video games which have the same UI? I'd be surprised if you have. Each and every one has its own interaction patterns, its own design language, and its own visual hierarchy.

I absolutely want the web to have better builtin widgets with common functionality and accessibility, but the point is not for them to look the same, but rather work the same.