There have been plenty of instances where I wanted to contact a reader after reading his/her comment on HN. But there are an incredible number of user profiles that have no contact info whatsoever.<p>I can understand if this was digg, but on a strong community site like HN, I was surprised to see this.<p>Is there a particular reason why many people don't have any contact info listed in their profile pages? If not, maybe now would be a good time to update with a simple email address perhaps?