Yesterday I tried inviting a player on my friend list to a game as their status showed green, only to get a message from them to say they were already in a game. Today, whilst playing a game myself, I checked my status on the game page (by clinking the Friends tab) and it showed me with a green light and Available when I clearly wasn't. I checked my status on My Profile page and was showing Busy there, but one wouldn't normally look at a player's profile page to check their availability.
Is there any reason the status is not showing correctly? I'm wondering whether if someone manually changes their status it somehow screws up their real status. There ought to be a 'Auto' status option so that one can revert back to WGT deciding your status.