1. What if there are so many entries in the main page, that eventually it becomes just noise?
2. There should be some way that I could follow/know more about one who shared his/her work, so that in future if he creates something new I am notified.
3. Wouldn't be better to give some kind of rating system and a search box.
This is now only a 3.5-day app. So yes, it doesn't do much yet :-)
The main page will probably end up being just the latest posts. I expect I'll add categories for easier exploring and navigation, but it seems premature now.
I might add following people/projects if enough people are interested.
I'm planning to send daily/weekly emails to share the latest projects and encourage people to keep working on their projects. I certainly lose momentum on things, so pushing each other to keep going will help.