This seems to be somewhat of another ambiguous reply on your part, and to a really old thread which no longer bares any relevance, but alright, I'll bite.
People who so readily see problems should also be ready to propose a solution. How do you suggest we get members "to show their presence" so that they can "share their ideas and knowledge in more elaborate ways?"
Oh and which elaborate ways did you have in mind exactly? Personally, I'd love to hear more.