Aha! I found the advanced search.
November 25, 2016 is the earliest post of mine I could find, but I know I have posted earlier then that. (Nov. 19th was the date I "joined." Joined what--the forums?) The topic in which I posted was deleted. Since I cannot locate my true first post, I'll just say that I've been here before the forums were updated, and when there was only Episode 1 in the Aetherlight chronicles.