UPS and Fed-ex also don’t care where they leave the packages anymore. They leave them at the wrong address all the time. I have often gotten other peoples packages, and have to deliver them to the proper person. And vise versa. Calling UPS or Fed ex to report the error is a pointless exercise. They simply don’t care.
Based on the condition of way too many of the packages I've received, UPS folks also like to drive their 'Big Brown Trucks' right over people's boxes. And they charge too much for the "service".
In my experience, USPS generally provides faster, cheaper, more reliable service - but not always. About 5 years ago, I mailed two engineering text books, from Denver to a college student in Los Angeles. Because they were books, I sent them book rate. On the plus side, the postage was cheap, and tracking showed that the books arrived in L.A. in just three days. How cool is that?! On the minus side, some USPS employee then decided that taking the books the last couple of miles to the destination was too much work - and sent them all the way to Ohio, instead. It took USPS over two weeks to get that corrected, and actually deliver the package all of the way back in L.A. Tracking packages can be downright entertaining at times...
;>)