This would be so easily bypassed that the whole concept, while technologically cool, is completely useless. Someone could apply a very subtle smoothing filter and then do whatever they wanted with it after via stable diffusion (or use the myriad of alternative methods to remove the “protection”).
I used to use my Blackberry to read Digg every morning in college while waiting for classes to start. It was great in its heyday, but maybe that’s just nostalgia or that I’d not experienced anything quite like it prior.