^ It's not just NASA, it's the entire aerospace industry. In college, I had one of those T-shirts that said "You might be an aerospace engineer if..." and one of the options was "you use more TLAs (three-letter acronyms) than the FBI, CIA, and NSA combined."
The fact that "TLA" is a known acronym ought to tell you something by itself!
You remember this scene from Good Morning Vietnam?
I've been in countless meetings that sounded just like that, only they were completely serious!