Ah, every MMORPG has repeating pattern in general so don’t be surprised by that. For all the newbs, I will explain missive term for start. Outposts that are stationed on rotating oak board (well looks like that to me) are missives, that actually you can take as a quests (usually have to kill something to get some new scroll). Some number of scrolls means getting an item (5-green, 10-blue). Ten is max. The only place where I bumped on missives is Three Rivers. I honestly don’t f know for any other one, would like to find out about new ones just like you.