This string of "WHY" seems to express a sense of confusion, frustration, or a burning desire for answers. It could be related to a particular situation, problem, or event that has left the person in a state of perplexity. Perhaps they are trying to understand why something happened the way it did, or why they are facing a certain challenge. The repeated use of "WHY" emphasizes the intensity of their questioning. It might also suggest that they have been searching for answers without much success, leading to a feeling of exasperation. The "D:" at the end could potentially be an abbreviation for something like "despair" or "dilemma", further highlighting the emotional turmoil. In any case, this simple yet powerful expression serves as a reminder of the human need to seek understanding and make sense of the world around us.