Many of us use MSN messenger and Yahoo stuff right.
Did you ever think what that status indicates? This is what i think:

OnlineTalk to me, I am in the mood for random and bizarre shit. Lol. Beware of sudden hyper attitude and such like.

Be Right Back
I will be right back la, idiots, you people don't know how to read!!

Away
Sometimes I really am away, but please check my personal message before deciding it is status menipu and spamming my MSN ok. :P I don't want my family to think my friends are crazy.

In a Call & Out to Lunch
I hardly ever put these statuses, so when I do means I'm really not there la haiyor!

Appear Offline
I don't like you. Lol.

Busy
When I put this status coupled with a personal message that says "don't talk to me"... THEN DON'T LA YOU RETARDS. Which part of Leave Me Alone don't you understand?!? :P Unless you consider yourself damn close to me and can talk to me without fear of being backstabbed like shit later, stay far far away.