These projects are run by volunteers, they don’t have the unlimited budget for designers that Adobe does. And to be honest, it kinda seems like you’re just criticizing them for no good reason. Have you personally designed and built a website that doesn’t suck?
A bunch of sites that have seen a noticeable downturn in quality since being acquired by Valnet. XDA and Android Police have really gone to shit lately. GameRant and Collider too. The Valnet guys founded Brazzers, if that gives you any idea of how shady they are.
RIP Polygon.