It also stems from a laziness to consider where a person is coming from, other than literal reading of text. Brains become callused, or worse slightly autistic, where only precision matters.

You just have to ask yourself who is responsible when lack of precision leads to bad outcomes. If it isn't you, then meeting the other person halfway by increasing your level of precision helps.

The emotional labor of having to be fully responsible for precision is under-appreciated. That burden is where the grumpiness comes from.

It also makes for excruciatingly tedious conversation.