I'm not suggesting that we do, obviously. However, newcomers have the disadvantage of not knowing the history, the ethics, the goals/ideals. They only know what it was like 'when they joined'. When I joined, I was corrected a few times for missteps I made. The growth rate makes that less and less feasible. It isn't that I hold a grudge to new people, they are just disadvantaged when it comes to the communal etiquette standards.