you could attract more volunteer tech by giving the volunteer technicians there own web space like
http://www.cjmacosxipod.macosx.com

or www.macosx.com/cjmacosxipod.com
the more questions they answer the more space they get.

But you don't want people answering questions to get more MB, you want them answering because they know the answer! :)

yes true
well how about more mb if you answer question right.

We exited the web hosting business 2 months ago. We do offer free macosx.com email accounts.

You can offer current techs stuff like free email, tie shirts, etc for a certain amount of successful questions solved. Yearly have a possibility to get some thing big.