With M rated titles it's the norm for the 30+ crowd to outweight the teens and twenty-somethings in the fan base. There are plenty of forum members in their 50s and 60s here, and a smattering above that.
Yep, when people tell me I'm too old to be playing them I tell them 2 things:
1) Take a walk down a video game aisle and see how many are rated "M".
2) Well, since I'm the 1st generation to grow up (use that term loosely

) playing video games and I still am then I guess they aren't just for kids.