Earlier quoted context omitted.
tough problem sure, but sending nude photos to a morally questionable company is not remotely close to the best solution to this problem.
If someone has your nudes and intends to share them I think blocking them only on Facebook and not anywhere else is not productive. You should just post the nudes yourself IMHO and be done with it.
I imagine for most people in most situations regarding their* unwanted explicit media being published, the opposite is true i.e. Facebook(social media) is the worst place for it to be