How do viewers perceive poorly designed interface

Viewers perceive a poorly designed interface as frustrating, confusing, and unprofessional. They may experience difficulty in navigating the interface, finding the information they need, and completing tasks efficiently. They may also feel a sense of distrust towards the organization or company behind the interface, as a poorly designed interface can be seen as a reflection of a lack of care and consideration for the user experience. Overall, viewers are likely to have a negative perception of a poorly designed interface and may be less inclined to engage with it in the future.