Script:What with having multiple browser windows open I'd guess that quite a few rarely play but show up as available.
I'd be interested in learning if there's a certain time-out built-in for the green dot? What happens if you switch your green dot on and then minimize & ignore your browser window? Has anyone tested how long you will be indicated as "available" for other players? Is there a time-out of 30 minutes, or 6 hours, or no time-out at all?
(Yeah, I've got 2 computers at home, too, and may test it that way later on if no one has a specific answer for this.)