This was why I canned a potentially useful image project a long time ago that could resize and manipulate images from any URL to optimise for mobile use. It's also why I've not dipped my toes into the murky pool of self-hosting any of this and rather use services moderated by someone else. It's just too toxic to handle, and dangerous to my career, and I don't know how I'd contain it beyond never hosting ANY image data and making it text only.