I don't know where to put this post. It should be under General Administration but there is no such forum.
Have you ever clicked on a posters name to see their profile and noticed in the URL bar that they have a number. (If you click on my name, my number is 1024. The Webmaster is # 1000.) I think this is the order in which we registered. I went to Germany in 2000 and purchased a rail pass from Rick, so I think I was already registered then.
If the number is the order in which posters registered on this website, the earliest registrant still posting is Michael Schneider, from New Paltz, NY, # 1006. I remember Charles, from Katy, TX. His registration # is 1003, but he hasn't posted for a few years. I think I remember his passing (or retiring), but I could be wrong about that.
The RS site did not immediately start recording posts. That seems to have started in March of 2007, on the 12th, I think. I know I had posted for years prior to my first recorded post on the 13th.
Even Nigel, #28,356, with almost 25k posts was posting in March, 2007.
Maybe the Webmaster can shed more light on this subject.