The general concensus seems to be to leave AutoQuit off for the time being. However, it will be turned back on if there is a spate of QQing or BBing from fights.
I don't know if you have seen the adverts on the TV for the BT June special offer, but it appears that during the whole of June local rate calls are extra-cheap. They give a number (0800 800 890 I think) to call for details, but I have been unable to get a reply. If anyone knows more details, could they please post them here for everyone's information? Thank you.