This is true. We used Hungarian Notation internally extensively. The most counterintuitive thing is that having a cryptic name for a concept can have advantages: it has a precise meaning, and if you don't know what it is, you can't convince yourself that you do. If there's a class in my code called, I don't know, "View", that's going to give me clues as to what it is, but it may also mislead me into thinking it should support certain operations that it doesn't, or that we're talking about a UI view when actually it's referring to a database view, or whatever. If you just string together a handful of random letters, at least when communicating with someone else you know you're talking about the same thing, and you'll use the same name consistently.
Not a good idea for code that you want people to be able to use without gaining a deep understanding of, but for collaborating on inventing new things, it's a very effective communication hack.
Not a good idea for code that you want people to be able to use without gaining a deep understanding of, but for collaborating on inventing new things, it's a very effective communication hack.