Agreed with most of your post Mike, but I don't think age is anything to do with it. I'm probably the youngest person here, or certainly one of the youngest, but there are many elder members of Camcaps who are great contributors and many younger members who are dickheads.
I think it's more to do with just common decency and courtesy, having a good upbringing, and just generally being a decent person. And of course, there are some people who are just wankers and will always be wankers, no matter what happens