It’s hard in some cases to determine whether someone murdered someone, or stole from someone, or committed fraud, etc. That doesn’t mean we just throw up our hands and say it’s foolish to ever try to determine whether any rules have been broken.

Fraud is a particularly good example here, because it literally involves making reasonable interpretations of someone’s speech. And I’m pretty sure you can’t weasel your way out of a fraud conviction because of technicalities with the way you phrased something.