The Whole key to driving traffic should be simplicity + content with one adding to the other! The simpler or less steps a user needs to perform simple tasks in a site, the less he get's bored or even doesn't bother at all to take the time on the site! I am trying to simplify the Wall module both logic-wise and code-wise so as to make it look more like Facebook's wall (or even better if that is possible). Keep your ideas going on! I really got my hands into this!