Exploration
Graal posesses a unique trait that no other mmo has- the ability to dynamically update content with no downtime. Additionally, updates are almost often spontaneous. Many big name companies will often "hype" upcoming content, whereas in Graal it may arrive at any given moment.
Additionally, the world around you often changes without notice, and may or may not have a purpose. It's this uncertainty and confusion that makes Graal feel like an adventure, you never know what you may find. An undocumented update as simple as an npc with seemingly no meaning may forshadow a signifcantly larger one, and it makes you think. It really develops a purpose and meaning of a particular setting. When North Graal city was remade, all of the seemingly purposless npcs were now relevant, and those who to the time to explore were rewarded.
Now, you may be wondering where I am going with this. By not documenting changes, it provides a sensation and eagerness to explore, because it defines the land, rather than using it as a tool that is not considered. If you simply say there is a new town with this here and that there, people already know where to go, and do not experience the feeling of being in an open environment.
I'm not saying to keep updates out of the news, I'm saying it would be interesting if more things such as quests were added in the background quietly, to provide a purpose to exploring the map, rather than simply going somewhere because you already know it. Content updates such as new features and fun features and sale items should remain in the news, but more story driven content should remain secretive.