I try to look at both sides of it, but must say i dont really see any need for it at all.
Is there any real difference between that & hitting the F5 key on a PC (None).
Going back to earlier when myself & tonyh were talking about it, if 120 people are on line & only 40 are playing games, BUT the other 80 have there refresh set at 10 seconds - surely this is just putting the server under pressure that isnt needed, as little as it may be.
I think that if a person does not make a move or do something on the site after a certain time either there auto-refresh could be disabled OR maybe they should just be logged off & have t log back on again.
Just a few thoughts :-)