I don't think I agree with a blanket statement like this. Features of a language can be used to make the code easier to read, if that's your goal (eg, to have other people read it and understand it -- including your future self). Sometimes, though, your goal is just experimentation and exploration. Why do you think obfuscated code contests exist?
Well, features of a language should be used to made the code easier to read, not the other way around.