> "sanitizing input" is plain nonsense
> "Unsafe input" is not a thing.
Have you ever used hand sanitizer? The point of hand sanitizer is to reject infectious diseases outright.... you know, so they don’t get IN your body. You seem to have adopted a narrowly defined sense of sanitization which does not include “mercilessly discard/destroy”.
There is no such thing as "infectious input data".
> You seem to have adopted a narrowly defined sense of sanitization which does not include “mercilessly discard/destroy”.
None of the dictionaries I just checked support such a definition. They are all about "changing something to be more sane/sanitary/pleasant/acceptable/...".
Also, mind you a hand sanitizer doesn't destroy your hand, it destroys microbes, in order to make your hand sanitary, so as to enable you to continue using your hand instead of rejecting/disarding it. Which is exactly the kind of thing you should not ever do with input data.