I don't think the Post Office deserves ridicule. It survives without funding from Congress and is self supporting. It doesn't make a profit but it's not supposed to. One of the big reasons it currently has financial problems was with Congress meddling and requiring them to pre-fund pension plans which no other government agencies have to do(not even its unions want this). Granted this is not the only financial headache. But this requirement from Congress really feels like an outright attempt to force privatization on the only agency that's self sufficient.