I think you should highlight the new feedback more. Right now you have to really dig in and search for it, and if you are not interested in a specific topic you really have to go out of your way to see the new ideas for that topic.

What I suggest is that on the main page in the "How can we improve SuperBetter?" section, next to "top ideas" and "recently updated ideas" insert a new topic called "new ideas". That way you can see a few newly submitted ideas and have a quick link to see a chronological list with all of them.