Unique users

[Tilien]

I'm curious if there is any data or way to collect data on the number of unique users. Based on unixgeek's (I don't know his forum name but that's his website's name) peak population tracker Green/Teal have a peak weekend population total of about 1800. Presumably this would be even lower if they were merged because of people boxing both servers. I'm curious how low it would be.

Additionally, Blue currently has a peak weekend population of about 500-600. I'm curious how many of those are uniquely Blue as well. I'm assuming the percent of people boxing Blue and Green/Teal is higher than the percent boxing Green and Teal together.