How many registered digg users?

I was curious about this after my little digg experiment so I figure out a way to see how many registered users of digg there are, just type in your browser the following URL

http://digg.com/topusers/page9999

This URL should point to page 9,999 of the list of top diggers, they list 30 per page (http://digg.com/topusers/page1 points to the top 30 users). Since there are still less than 300,000 users, it gives you a page that shows the last page of digg users, currently the page 2,744 and there you get the magic number. The trick does not seem to work using a URL with a page number with more than 5 digits.

CD