When a website or application is designed badly, it creates self-doubt in the User. It can frustrate, confuse, and even make them leave if they aren’t able to easily find what they are looking for. This can make the User feel like it is THEIR fault, like they did something wrong or that they are not able to figure it out. When really it’s the designers fault. Its out job to make the User feel happy and confident that they know how to navigate the site/app and find what they need.