Don't agree with that either.

IMHO, "int" is perfectly acceptable if you just want to use the platform's preferred word size (and are fine with the possibility of it being only 16bit). Also, "char" is perfectly acceptable too if you're dealing with ASCII. This is valid for both the signed and unsigned variants.

The general rule should be using the language types as long as you're not assuming something about their size, only then use "stdint.h" because it makes your assumption more explicit.

Now, nobody uses "short" or "long" to mean "something smaller or shorter than the platform's int", so these are usually something to avoid.