I figured I'd throw in my two cents. I was one of those people who started and then quit (although that was about 5 years ago). I recall immediately falling in love with the atmosphere of the game. I kept playing for about a year, but I lost interest. From what I remember, it felt too much like I was playing a faceless pawn. That was more my fault than other players, as I never tried to RP or create backstory or anything fun. Following your generals orders in war is interesting at first, but loses flair after awhile.
I came back to it on a drunken night a month or so ago. Started a character in Dwilight and EC. In Dwilight I got sucked in pretty good by the dynamic of churches, daimons, and randomly picking a town that was about to secede. It got me interested to figure out what was going on and I've been going through the Wiki like it's a fantasy novel. If there was a wiki back then with the amount of backstory there is now, I must have missed it. That and trying to immerse myself in RP, politics, and trying to create a story make me feel like I'm probably going to stick with BM this time.
Being invested (in a new realm, a power struggle, or creating a story) was what felt missing last time. I don't remember why I chose where I put my characters (probably arbitrary reasons), but Dwilight sucked me in. EC was dead at the time (peace and silence), but after getting sucked in by one continent it made me want to kick up a fuss and MAKE the other continent lively.