Well, good design is obvious once you know it. But before you know it, it's as opaque and obtuse as anything else. It's just that design has this strange proper

Well, good design is obvious once you know it. But before you know it, it's as opaque and obtuse as anything else. It's just that design has this strange property with us humans in that, when done right, it feels so natural and emergent to us to the point we automatically take it for granted the instant we "get it". In the realm of modern-day web-design, most bad design is because the website was built before a lot of these good design principles and conventions were invented (e.g. responsive grids, tons of padding, flex-direction(column), etc.). Next followed by prideful "designers" who steadfastly refuse to use a design framework because the site they're building must be a special snowflake. Next followed by the missing-the-point-followers of RMS (that is, they're not following RMS for the free software philosophy) who plainly look down on CSS and design as something that is beneath them. Finally, I'll give you laziness.