There is alot of speculation regarding this.. But recently an audio conversation took place with sony's help/enquires line.. and the sony representative stated that a user of cfw should not get banned if they back up their own games and play them online!!
hear the convo yourself you don't have to download just listen.. (lets hope it's real lol..)
zSHARE - VORC011_1_.WAV
SORRY I DIDN'T REALISE THAT I MADE 2 THREADS I HAD TO REFRESH THE PAGE!