Some players have experimented with allowing friends to play their heroes for different reasons only to be associated forever with that player.
I understand there should be limits applied to this action and those are understandable, i.e. can't supply resources to each other or fight each other. I was thinking maybe that association can be limited to 1 year for first offenders. After that if the action is repeated then maybe the "punishment" time can be double or triple.
Having that association stay forever on first "offense" I think is a bit drastic, and deterrent to players that make that mistake unaware of the consequences to their action.