It is definitely an interesting idea.

- How do I moderate the questions?

- I lost the link to the event I created, is there a way to get it back?

- Should new questions appear live on my screen? (I opened two tabs entered questions, and Had to refresh the other tab to see the questions)

- What do you need users emails for? Apps that inform the user always make me feel better.

- Are you planning to have a listing of 'public' events on the main page for ease of access?