Your method of adding my post-rates would only work if I had started all three of my accounts on the same day. However, since that is not the case, you have to take the average of my post-rates in reference to my differing join dates.
Kittykat's profile states she has a post rate of 28.97.
If you calculate it, that means she been here for 10 days.
So now lets assume VTs numbers of days were off as well:
Posts: 3697
Days: 127
So the post per day count was about 29.11 at the time.
Of course, it would appear that VT has been posting heavily with his IVT today, so these numbers could have been very different at the time of VTs first posting.
In closing, I'm hungry. Anyone got another flag to eat?