If you can add more and more features and several different ways of doing a task, should you do so? No, more UI isn't more usability. Usually, less is more, so focus on users' key tasks and design simple interactions for each task.
Complex content slows down users and distracts from task performance, thus degrading the user experience. Clear language facilitates comprehension. It's that simple.
The road to usability is paved with temptations to complicate the design with extra features and options, but resisting featuritis is the best prescription for a good user experience.
Dark design patterns intentionally trick users into doing things they don't want to do. This is different than persuasive UX which nudges users without deception.
Inclusive design describes methodologies to create products that understand and enable people of all backgrounds and abilities. It may address accessibility, age, economic situation, geographic location, language, race, and more.
