Woah, we're going back a few years now, all the way back to 2003. I remember visiting Aone's website quite often in the hope that a new Naruto episode would be released, and one day on the front page it said "Why not sign up for our new forum?" so I did, for the hell of it, under the name CmDr_RavEn (for those who remember). I think I was about the... 54th member or something, and I was annoyed at myself at the time for not signing up sooner to be higher in the rank, so to speak.
These days I'm falling behind on the Naruto anime (which I was quite obsessed with back in the day) and I miss the old days of the deep and meaningful discussion of everything to do with the Naruto universe, and the heated arguments that would start over the tiniest of details.
I remember the previously discussed Itachi thread, those were some good times. And we used to have no rules about spam, so in anticipation of a new Aone Naruto episode, just when it was about to be released, we'd have a thread in the anime forum that would get to about 86 pages of people using the forums like an instant messaging program. Aah, memories.
As far as posters were concerned, Mut was always someone to watch out for, as were both Terra and Assertn. There's not many of the original crew left, unfortunately. Keep an eye out for people who joined July or August 03.