MissionZenai has been in search of his CB1 birthday for quite some time. There is no prize, but it would be really nice of you if you could find it.
Reference Point #0:
Zenai U'lanya (user: 79619)
Reference Point #1:
dynom|te (user: 79008)- Member since October 29, 2004
Reference Point #2:
trigun (user: 80456)- Member since November 10, 2004
Reference Point #3: Found a forum post by several users
WhiteStag (user: 79150) made a post on Nov. 4
[Revered]Gijouhei (user: 79661) made a post on Nov. 4
Patriot (user: 79345) made a post on Nov. 3
I've made a lot of assumptions here to narrow down the days. If you can do better, by all means please do. :)
With reference points #1 and #2, there were approximately 1448 new users. During those thirteen days, there were an average of 100 new users per day.
Using reference points #1 and #3, there were approximately 653 new users. During those seven days, there an average of 93 new users per day. More importantly, this now tells us Zenai's CB1 Bday is within the range of Oct. 29 - Nov. 4 inclusive.
Assuming 100 new users per day, I'll say Zenai's CB1 is from Nov. 1-3, 2004.