I don't like to generalize. However, when it comes to media like forums, I think we can point to changes in the education system for some of the differences between the oldsters and the youngsters. Back in the Mesolithic when I was in school, we were taught that it wasn't enough to get the answer. We also had to be able to present that answer in an organized, logical way, with supporting evidence. Critical thinking, logic, and debate were important cornerstones in our education process. Fast forward to the last decade and those cornerstones have all but disappeared. Now, just getting the answer is the goal, essay writing skills have been replaced by 'reports', and multiple choice exams are the norm. Without the background in reasoning skills, it is no wonder that younger forum users can become frustrated and rude when trying to express their opinions to others.