Oops, I just realized that I forgot to post what hooked me.
I found FT before it really was FT. I search for "frequent flyer miles" and got routed to Inside Flyer that had a back door into a discussion group. I was looking for advice for taking my family on a trip to Malaga and Mallorca. I had quite a few miles at the time but really had no idea how to go about using them.
The people I found here (many of whom are still around today) not only had great ideas, but were also so smart and so funny that I couldn't break myself away from their company.
I really think the amazing people who hang out here are the key.