One area that perhaps someone on this list can explain is the difference between number of edits as measured by revisionID and as measured by NUMBEROFEDITS - the difference is over a hundred million. That is too big a number for it to be a measure of logged admin actions, unless when you delete a page it increments number of edits for each revision deleted. It might be in the right ballpark to give  a measure of edit conflicts, if so it would be very good to have a measure of something we had thought unmeasurable.