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')
It’s ok for jargon and acronyms to be confusing to people who are not at all in the field.