Thank you for the topic!
It's always interesting to see how some features will be used and how that usage differs from their intended. Generally, I think this suggests that there is a gap in people's usage needs that we aren't meeting and they take a feature and repurposed it to meet that need... In this case, I'm not quite sure how I'd go about addressing the apparent need (more stringent warnings to not steal characters) but I definitely agree that this isn't how warning system should be used especially as several people have pointed out that the misuse dilutes the effectiveness of the system.
If possible, could you submit a ticket with a few of these? Mention that I wanted to see what it looks like. I don't think I have a fix or even an idea of how to address this issue but its definitely something