The 800 day membership reward allows players to type a philosophy, which appears whenever someone asks Tavelor about him.
There's something very fun about customizing a character, and the world in general. I remember Simple liking the idea of players writing notes. But ideas like wall graffiti, putting up signposts, making fires - I think anything that lets a player impact the world are good suggestions, even if the effect is small. Even the way items are persistent instead of disappearing makes a big difference in making Aberoth feel like a fantasy real world that we gaze into, rather than a program. Or the way the labyrinth gate stays open or close.
Kelly was shouting in town that he was disappointed and wanted items. Let it be known that he is a based and troublesome character. My tastes are more refined.