Don't write so as to be understood, write so that you cannot be misunderstood. This adage is atrributes to the Greek stoic philosopher Epictetus. I am a little skeptical. I'm going to try to track down the true source if I can.
Anyway, you want your writing to be so precise that misunderstanding is the reader's fault, not yours. The test is not whether someone can understand you, but whether they cannot not understand. Someone I know complains that people are always misrepresenting Judith Butler. That's irritating, for sure, but I wonder why? The more difficult the ideas, the more opportunity for people to misread them.