Looks like it's been just about exactly 13 years for me as well. The first "Mark S" post I could find was in February, 2002 ... I can actually remember when Mohamed Elozy suggested this forum to me on one of the Northeast boards.
In one of my early posts, I make reference to having 11 HPs. Ah, so many good mountains were in front of me at the time. This forum has been along for the whole ride and I haven't been kicked off once ... even though roger did once tell me "sign the damn waiver or don't go" regarding Kentcuky.