If you go to the Clout forum, you'll find a thread where we're discussing the limited nature of Clout factions. As each expansion is a new faction, it's impractical support each one eternally, at least with our current strategy. This has really got at least a few players pretty hot!
For the details of the discussion, click the link. I just want to share a bit about me and why I think this is an issue.
I don't have a favorite faction. When I played Magic I didn't have a favorite color (I had a least favorite color...white.) Most trading games are faction oriented in some manner, and I have never chosen just one and stuck to it. In fact, regardless of the game, I don't like to play the same faction twice in a row. For me, it's about variety. The more, the better. Those that have played me at conventions know I like to change stacks after every game. Not only that, I like to go up and rebuild and retune stacks after every game session, even if I won.
I think an individual's preference regarding single faction or multi-faction play is based on personal preferances in combination with game culture. As Magic was my game of choice, and color allegience was not considered a big deal, I never developed it. My observation of L5R players, on the other hand, leads me to believe they can be fiercely loyal to thier factions. I've seen a few Clout players who have also grown attached to their faction of choice. It seems there are many who fall into this category. That's just not me.