I didn't totally buy the innovation of it at first either, but I think beyond a fun social platform, I think it offers a really interesting platform for generating "real" discussions or feedback. For example, a company could use something like this to host a Q&A with management, or for a focus group, etc. In other words, I could see this replacing some of the application for Survey Monkey by having an interactive yet still anonymous way for people to have a frank discussion. Who knows, maybe parents and teachers could talk with their kids, even! :)