As a relative newbie to the scene I have noticed that there are a lot of TLAs in aviation too, especially confusing as I work in IT which, I am sure, is the all-time champion industry when it comes to TLAs, the problem is that some have now started to overlap. I have to switch brain modes from IT to aviation and back several times a day.
Knowing too many TLAs becomes a real distraction when you are driving as every third car numberplate is meaningful in some way