The heart (see what I did there?) of the first phase of the I Heart DNN site was all about telling us why you love DNN. A simple activity feed for you to share your love of DNN front and center. You hit the site, login with your preferred social media, and you're ready to tell the world how you feel. Since you have to be a user to share, we felt that having the login be tied to your social media account was the easiest, and lightest barrier to entry (for more about what we did there check out Brian's post).
So once you logged in, told the world how much DNN rocks your socks, now what? Well, we have other features cooking, but for the meantime why not fill out your profile? Assuming users will be curious and click around the site to learn about all these other like-minded DNN fans, you want to make sure that you have something for them to discover.