I'd largely agree with you with regard to Systems Hungarian Notation, but Apps Hungarian Notation has made my job much easier when talking about whether data is

I'd largely agree with you with regard to Systems Hungarian Notation, but Apps Hungarian Notation has made my job much easier when talking about whether data is sanitized/unsanitized (or other similar distinctions that fall under the same type) in the scope of a larger program. In that case, it can prevent programmers from mistakenly interpreting the state of the variable, which is much harder to easily glean than the type.