I could definitely see the gun emoji mentioned in the article causing issues in a court case. For example, if two people get in an argument, and one person thinks they are sending a playful water gun emoji, but the other person receives a real gun emoji. The person receiving the "real gun" emoji might feel threatened, even though the sender thought they were being playful. It's like when you frustrate your spouse and they say they're going to kill you; context matters, and some device vendors silently change the context for political reasons.