So if postal rates could be reduced by having the USPS run whore-houses out of the back of Post Offices, should they do that? I mean, if they didn't, postal rates would be even higher, wouldn't they?
The government should make it's money through taxation. If you want them to make money in other ways, be prepared to accept them doing all sorts of foolish things in pursuit of a buck.
I prefer that govt make money through means other than taxation. User fees, commerative stamps, Off-Track Betting (as in NY), and lottos are all better, since they are voluntary. I'd rather others voluntarily subsidize govt, so as to lower my tax burden.