It uses shadcn so often, to the point where seeing shadcn components with default styling often means the site was built by AI. It's like Bootstrap 10 years ago - so many sites used it with default styling that it was instantly recognizable.
Highly pervasive, first step people do before starting new projects is setting up stuff like Tailwind, Shadcn; they also don't bother much with modifying how it looks since it looks decent out of the box causing similar looking websites everywhere; similar to how the Bootstrap craze was back from 2012-2015/6; where all websites just looked the same[0]
A lot of the sites that use shadcn's default styling are AI-generated. The people that use it in hand-written code usually customize the appearance at least a little bit.
