I joined the Azura's Star campaign (no CP allowed) a few days ago. I quickly realized that this campaign has issues:
1) Only a handful of players are ever on; even on weekends.
2) One allience dominates completely; owning all castles, keeps, forts, outposts and almost all resources all the time.
3) NPCs are over powered; difficult to capture resources and keeps.
4) Emperor is over powered; much more stonger than other campaigns given the emp and scroll buffs.

So, I can see why only a handful are ever on. It only serves those few on the winning campaign to get gold rewards easily.

Either fix the issues to make it more competitive or shut it down!