Earlier quoted context omitted.
> You wouldn't be able to denoise as you'd have to denoise the entire dataset Doing that requires much less compute than training a large generative image model.
I guess the idea is that the model trainers are ignorant of this and wouldn't know to preprocess/wouldn't bother? That's actually quite plausible.
Maybe they're ignorant of it right up until you announce it, but then they're no longer ignorant of it.