Good question, Harvey. I think it has to do with habit.
Using a resource like this requires that folks learn a new habit.
Most of us are used to certain social media habits for news and for posting, and
we are very ingrained in the newspaper habit for news and info and posting.
This is something in between and new to most folks.
So, a bit of awareness raising might help it....but awareness raising would be
in the places that people are already looking and using for posting and for news...
so, facebook, twitter, etc and press releases to the regular print media on a periodic
basis. Just my thoughts on your question.