Earlier quoted context omitted.
I wonder if the .com TLD is part of the GOP campaign to kill the USPS
USPS purchased the usps.com domain a long time ago specifically so they could control it and prevent phishing. The decision to replace usps.gov with the .com domain came later, with the tenure of Trump appointee Louis DeJoy. Right wingers believe that USPS should operate as a business, not a public service, so "rebranding" their website to be .com is definitely a part of that narrative.
Seems failing businesses is also on brand for those guys.