Canberra resident User:Thurstan has been our "top user" for some time. He's made about one edit for every four pages on the wiki, and has created a large proportion of the pages, recently importing thousands of categories and other pages from Wikipedia. Great work!
Thurstan's also good at fixing code. I hope he can help with the adjustments needed to deal with the recent upgrade to SMW, which he correctly guessed was causing at least some of the problems with forms.