Character Status (Messenger Style) ?

Maybe this has been suggested before.

Character Status!

A simple line that all your friends will be able to read when you come online, and can be read as game informations (when you browse to join a game)

And a Available/Busy system.

Why?

1- notice your friend on what your doing, so they can join you to help:
-Farming Vyx leave me alone,
-Helping a L35 friend join if you want,
-Tome quest 989! Yay!,
-40 snowballs Un-yay Please help!
-Overlord left, any archer?
-selling/trading Void..

etc...

2-Prevent them to spam-invite you
When you set your status on Busy, you don't receive invitations. (but you do receive PM)


3-Time saving..!


What do you think?..

That would be really really helpful. Love te idea and thats a MUST have in any mmo.