There is a player in alliance who has a message set to repeat every 100 seconds in trade chat. Coincidentally it also requires player interaction (it is a request to purchase something via COD.)
I, too, would love to be able to buy stuff for bargain rates while I'm not at my computer.
A side effect of this is the player stays online, and is allowed to continue taking up server time while not at the computer.
Is this allowed?