Is this not just "have the image be blacked out with a 'hidden' overlay, then you can click it to unhide it (with a button to re-hide it again if needed)"? That's how it works over on Masto, and it doesn't change the format of anything at all.

I don't know much about Lemmy development so have no idea what this new feature is like. If it's more like "filters out posts with images so you don't even see they exist in the first place", I could see that being annoying.

-- Frost