I am merely stating my opinion based on our current laws. But let me pose it to you this way .....
You commit a crime and do the time. While it may be the "only payback," it isn't exactly and extended stay in a Cancun resort. Having spent many months that add up to years at sea being confined to ships with the same people for extended periods, I can somewhat empathize with "living that one, really long day."
At any rate, the punishment for the crime has been handed out. Its' hardly fair to continue to heap on punishment after the fact when the person has served his time.
I could also caveat this with "it depends on the crime," but that is subjective and the walking talking geekazoid eggheads who must a definitive black and white answer to every possibility would have a stroke on a statement so open to interpretation.
For instance, I think child molestors/sexual offenders should never be forgiven, while Bob the Banker who does 5 years for embezzlement doesn't pose quite the same stain on society, IMO.