try very low user numbers for very low posting quotients.
e.g. User 18
2739 days 8 posts
try some people who just joined and posted, some will have astonishing numbers.
Some managed to be banned after not moving but posting like hell.
I do have a suggestion. Since every post comes with a date. Grampy couldn't you just go through the threads and count the posts per day per member. Then you could make a big table highlighting the most posts of a member at any date.
The chrsitmas poster. New years poster.
Why not create awards. I would so like to have a "most posts on xx.xx.200x at my home.