It's easier than ever to de-censor videos

Or a white box. Or a purple-and-pink gradient box. It was always the most reliable method anyway, since it ensures that there's no real information within the bounds of the box to be recovered. As far as I can see, the only reason for the popularity of the filters is that they look a bit less jarring.

And if you don’t know which image types support layers and which don’t, screenshot it again for good measure.

This is not about still images, its specifically about video where you use a fixed pixelation grid on a moving object. Using that level of pixelation works perfectly fine on a screenshot. But yes, better just black it out anyways.