I'm on the site every day because we're so new to T1. Every day I learn something new, and am able to get questions answered. But, I can see where after several months I'll be burned out on T1 and not necessarily be over here as frequently. And, I know that there are lots of folks here who are incredibly generous in sharing their experiences and expertise. So, I suppose identifying the primary motivation of regular contributors could give some ideas of how to better serve the needs of those who do not contribute.
One thing that could definitely keep people (okay, me) interested longer-term is having an e-mail notification each time a new topic is started. I only receive notifications of additional comments made after I have made a comment on a topic. If there's some way to change the notification, please let me know. And, is it possible to make a new topic notification the default setting for all new users?
I found out about the site through Red's blog, and have a link to Juvenation and other T1 sites on my personal blog. Everyone who would like to help expand the network could include links on their blogs, FB, e-mail signature lines, etc. Using the term "diabetes" in the tag line of relevant posts can bring new readers to your blog who have set their readers to alert them to that term (did that make sense?).
I'll have to go through my piles of "new T1" stuff and see if there was a flyer for Juvenation in there. If there was, it was one of waaaaay too many flyers, so did not get enough of my attention to get me to join. Juvenation was listed on a list of web resources given to me at my T1 class, but it was listed as a site for "young people" with T1...that would have prevented me from joining if I had not already been here.