Something that I found incredibly intimidating when I was a new player was explaining IC my character's complete ignorance to ig norms. I'd often forget what symbols portrayed what noble houses (or what a noble really was or meant politically) the delineations of different templars, the ways to certain popular areas (which my PC, if growing up in that area, should easily know) or even knowledge of other cities I hadn't played in yet (like Luirs or Red Storm). While older players were often pretty good with explaining these to me IG, my PC not having a reason for not knowing these places, even though s/he should, was really awkward, and it often felt as if it took away from the realism of my character.
What I'd propose is some IG mechanism to explain why certain people don't know anything about anything. My general idea would be a (virtual) short-term disease that resulted in memory loss, maybe from drinking bad water/eating bad food/getting bitten by a certain snake. PCs afflicted with this could wear something that would denote this problem (Like a bracelet or necklace of some kind?), and this would show other that this character doesn't have the best brain at the moment, and that the player might be new and not know much about Zalanthan culture.
In regards to IC, due to forgetting social norms, a character might be at risk of offending nobles or templars, and therefore would want to show that they are not being intentionally rude, just "diseased", and that the offended character would rather brush them aside as a feeble annoyance rather than an outright detractor. I know that it is not fully in Zalanthan culture to forgive and forget, but I figure that nobles and templars would not go out of their way to punish a mentally compromised person. This is not to say that I see Templar and Noble players beheading newbies all the time, but would provide an IG reasoning as to why that super-strict-and-coldhearted Tor is lenient to this one commoner in particular.
I think this could be a great way to negotiate the intimidation some new players might feel getting in game and not knowing everything about the extensive documentation, and also avoid awkward circumstances in which you have to explain to someone, who has apparently lived in Allanak their whole life, what "His Arm" or a "gemmer" is. I know that there are some problems with this, (Why would a commoner in Zalanthas hold a "I'm vulnerable and have a bad memory" sign over their head) but I think it would work really well to make new players feel more comfortable.