I'm in the field but don't actually use USD so when I heard some colleagues talking about it I googled to try to figure out what they were talking about... but was unable to find anything that wasn't talking about currency. Even if I Google something like "USD format converter"I tend to get a bunch of currency converters. it is kind of a pain in the ass.
Any old BOB or RON can use USD as part of their work. I sometimes work with Autodesk and I, personally, prefer CAD. Don't let this RUB you the wrong way. Don't get MAD. Don't call a COP. Don't declare an SOS. For those that use PHP, consider SVC or plain old PEN.
Its simply not ok -- pure consonant acronyms obfuscate and conflate meaning and dilute inter-communication. They are a relic of the pre-internet. It would be better to either eliminate usage, or move to richer abbreviation practices which include vowels (like 'SemVer' for 'Semantic Versioning')