Looking at the results of this poll, I see a large majority of people have recently started commuting. Why do you think that is?

Is it because as people commute for more years, they stop reading the forums (the forums usefulness is mainly for beginners)?
Is it because people stop commuting after five or six years (the novelty has worn off)?
Or, is it because long time commuters don't use the internet or haven't found this forum yet?