As I said yesterday in chat, I've got plenty of free time over the coming weeks, so I'm going to try to work on something useful for us. Specifically, SEDE.
What statistics could we make use of here? What do we want to know about the habits of the community?
You can look at the database schema on the right hand side of this page on SEDE to get an idea of what data we might have access to.
What queries would be useful?
(Please note: if you're looking for the queries themselves, they are now in this meta post)