There is currently just one notice flag in the game - a bubble, a bubble with a red circle and slash, or no bubble. it displays next to your name and shows everyone what kind of chat you have.
I would like to request a few more types of flags be added
AFK - when turned on, this would put the letters AFK in red next to the badge so that everyone could see that the player isn't currently watching the screen
No Help - when set, a red exclamation point with a red circle and slash will appear beside the player's badge when in combat so that everyone can clearly see that the player does not wish anyone to join their battle.
Please Help - when set, a bright gree exclamation point will appear beside the player's badge when in combat so that everyone can clearly see that the player would like for others to join their battle.