Personal friend of mine had reverse image search performed on an uploaded photo. It named another person as the likeness of the photo. This was done on one of the better image search apps.
Careful goes both ways.
As for debunking, you obviously did not see that the accuser is linked to Soros through her lawyer. That's important. Unless a person is trying to boost their own sense of self-importance with an 'I know better' schoolyard demeanor, the aim is to get useful info. If I wanted, I could spend all day and then some on how people do wrong things, I often point it out to them but come back with a point in their favor. Sometimes I've read the riot act to people that wasted my time. It only served to dampen enthusiasm for a topic. There are better ways to point out errors.