I tend to have a pretty good memory of the posters who were here before me and came after me (or at least weren't active such that I didn't see them until later). More so on the SEC board. It took me a little time to venture out to the B12 board, and even longer to the Big Ten board. So while I remember Big Ten'ers who were already there, it's possible some of them might have actually come along after me. But unlikely, because I don't think it was that long.
Cincy, rtf, and Drew all predate me on the SEC board. Many others who are no longer around. OAM came after me. That's kinda all we have now, except for the Tennessee bunch who mostly keep to themselves on their team board.
Big 12....utee94, Erin, Mr. Tulip, CWS, Longhorn320, and Fearless were all here before me. Many other Sooners from years gone by which aren't around anymore, and a couple of Horns. Shiner as well, who mostly isn't around now.
Big Ten....wow, so many. Would probably be easier to list the people who came after me, but I don't think there are many. Yourself (SuperMario), Badger, SFBadger, MarqHusker, BBTS, ELA, MrNubbz, and I think HonestBuckeye, are all posters who predate me. A number of other Buckeyes and Michigan posters who aren't around anymore as well. I know I'm forgetting a lot of people, and there's some I'm not sure about, like Temp. Oh, and NUWildcat (RIP). I think almost everyone I see on this board came before me. Vast majority, for sure.
