Was kind of surprised to not see this in the game, but I was envisioning a window where someone could flag themselves and fill in an optional text box about what they are looking to do, and upon joining a group their entry would be removed. It would make it a little easier for people leveling/exploring that are looking for people to do tasks/events with, more than just randomly arriving at the same place. This window would show everyone who has entered themselves across the server.