You know bigR, you hit that one on the money.
Every year we hit a slow point and every year we have "save hero6" posts. Except with every passing year it gets worse. And I think the reason why is exactly what you said: the QFG generation is getting older.
For me, my age is exactly the reason why I don't contribute as much as I use to. When I first joined, I worked on hero6 almost everyday. Now that I'm older, the only computer time I can afford is when I'm at work, where I have a very busy "career-oriented" job.
Anyway, I never worry about it because I know one of these days I'll have the time and energy to work on hero6 again. This will probably be around Jan-Feb. The holiday season is a bad time for me to think about contriubting for some reason