Am I the only one who understands???

Listed below is a routine traffic sign, that one would think people would obey...but nooooooooooo What is it people? Why? Are you playing policeman, trying to keep others from going faster then you think they should? Are you truly that self-absorbed that you're unaware that your actions are affecting other people? Or are you just playing asshole, aware that your actions are affecting someone else, but you just don't care? Whatever the reason, I consider this an open declaration of war. You may have started it, but I'll win. Challenge.