If you spend any significant time consuming content on the web, you have probably come across the initialism tl;dr. It stands for "too long; didn't read." It means pretty much what it says. Whatever message you were trying to communicate was not received, because you demanded too much of the reader's time, attention, or focus.
Now, some may read that and think, "sheesh, people have such short attention spans today!" I would challenge you to flip that thought on its head. More often than not, tl;dr is a symptom of poor presentation of content, not the consumer of that content, i.e., the product/content is the problem, not the user.