Same here. I only came here to ask just one simple question but I decided to stay.
Don't lie. You didn't decide anything. The forums trapped you... like a caged animal. The forums are alive, I tell ya, and they were a comin' for ya as soon as you stepped foot in this place. Big, fancy-talking city folk like you, with your fancy edumacations, always think they's in control, but no... the forums have a mind of their own. They watch us... restrict us like pets.
Anyway, I started wandering around here a couple weeks before I decided to join. I still remember how alien and foreign the place felt to me, and now it's more familiar than any other website. I came here because Oblivion and Fallout 3 (my then only played Bethesda games) struck me as being of uncannily good quality, size, and design... catapulting Bethesda to the top of my favorite developers list. I didn't know forums existed until I found this one (Yes, I was an internet novice), so I found this place completely by accident while looking up Fallout 3/someting Fallout 3-related that I can't remember, was intrigued by the concept of a forum, and loved Oblivion and Fallout. I'll skip the boring run-on post of how they were the exact type of game I was looking for yet never could find, before, but they deeply appealed to me, so I joined these forums. I don't remember if I had a specific goal (question, comment, etc.) in mind, but I remember that I liked the games I had played enough to want to be a part of this community and play other games Bethesda created. It's still the only forum/online communication site of any kind I have ever joined.