I've saved some of the worst images Dalle generated to be able to showcase just how bad it can be sometimes. And then other times the bad image is hilariously bad. They can probably build another layer on top of the feedback system though to filter that sort of thing out.
I would guess your use-case is a statistical anomaly. If most of the images that are saved are saved by people who like them best, which is most likely the case, enough data will erase the problem.
