On the flip side, this data is already public. (its a leak). And by HIBP exposing it, the cost of selling this data goes down, playing the long game to help us.

On the flip side, this data is already public. (its a leak). And by HIBP exposing it, the cost of selling this data goes down, playing the long game to help us. By HIBP locking down this data, you get a false sense of security. (it is still public info, just only in sketchier places), and there becomes a higher market for selling it.