Î got thinking about this idea reading the latest
tax thread.
IF one maxes out resources, what cannot be held in ones cargo goes directly to the base funds, but its sold off at 60% tax (instead of 20%).
These credits then should be locked in another "account" that cannot be withdrawn and base upkeep draw from this funds first and then from
the donated funds if the first account cant pay for the upkeep.
in general:
2 different accounts in base: donation where withdrawal is possible, and one fixed account where ony deposit is possible from minerals.