Ironically, all the ones making suggestions to "tone down" the n00bs appearing on ZU are ones that mostly joined this year.
It's Internet. You can't always have everything go the way you hope they would go. Besides, this is a Zelda gaming site (or used to be). It's only logical to assume that there will be more teens than young adults here. Would you want this place to be filled with 40-something years old men and women with nothing better to do than discussing about their future family plans and career goals?
Like Fish said, it'll go away soon. It happens all the time. Summer; the peak of all activities; both good and bad ones mingling into one big happy family.
Heh.