> If fiscal responsibility were the goal, they'd have required the other federal agencies to do the same

That's not how the Federal government works. It's a LARGE organization that sometimes have people with philosophies align. There is no chance that the military would prefund pensions. I think that, toward the initiative to make the USPS free of subsidy now and in the future, it made perfect sense. The USPS workers used to talk about everything moving electronic, but that's not happening in our lifetime. 50 years is just "the near future", respectively.