At first I was quite shocked by Brendan so directly referring to it as stealing, but after thinking about it some more I have come to agree that it is a fair characterisation of what some of those involved were doing. There were those who knew that they would have to pay it back and so they were just using the mistake to knowingly take out more than they were supposed to, which is wrong, but a relatively minor offence and probably not meriting the label of stealing. It sadly seems, however, that quite a few took money without intending to pay it back. They were knowingly exploiting a mistake for their own benefit and they knew that it was wrong. That, to me, is clearly stealing (at least in spirit) and I don't see how anyone could consider it to not be. It is no different to taking someone's wallet when they aren't looking.
I find it quite depressing that there are people who think that the wrongness of the action is mitigated (or even excused) by the banks being profitable, or that politicians, or anyone else, are somehow to blame for people doing something that they knew was wrong.