Please report dangerous drivers to the police - Roadsafe. Report to plod, not just whinge here.

Your example regarding Americans is more to do with sarcasm or irony, and their general lack of facility with this means of expression.

No it's just a lazy thing that's become normal, like every other linguistic oddity, except in this case it 's clearly absurd.

Most British people don't get irony, Americans aren't especially stupid