AO lacks mythology and history...
Sure, there's the general history and timeline, and everything established in Prophet Without Honour, but where is the story of places like The City of Home, 20k, and other various Rubi-Ka landmarks?
Where's the story of Calia, Mocham, Mongo, and Izzy (you know, the Lil Nuke and Last Word guy...I'm really not going to try and spell that from memory)
(Does every profession have a nano line [or at least a nano] named after what seems to be a historical type figure? I can think of Adventurer, Enforcer, Agent, and NT off the top of my head.)
Just a plea to make Rubi-Ka and the professions a little deeper. If FC staff doesn't have the time, I'm sure you could give the players a few tidbits about things and let them fill in the gaps for you.