It's kind of surprising to me that I can't customize the search ability at all with a lot of models (at least I wasn't really able to last time I checked). Would providing a blacklist to the model really be that hard?

Actually, it's astounding to me that companies haven't created a more user friendly customization interface for models. The only way to "customize" things would be through the chat interface, but for some reason everyone seems to have forgotten that configuration buttons can exist.