Can it find broken UI?
Human can find and report broken UI easily by using common sense.
Even though it is simple for human. Computer has no common sense and I am a machine learning expert. I tried and mostly failed to build a broken UI detector in my previous company. They had automated plugin upgradable process. That periodically broke UI.
I tried to detect it my taking long screenshot, and you could select a image as working version, then later finding diff between 2 images. I kind of worked but not satisfactory.