I was asking myself why this was there in HN top, headed to Google Images and yes, it dosen't provide a direct link to the image anymore :/ This is going to be very harder for a normal user to download an image at full resoultion. Well done with this script :)
I'd add the direct link as a parent comment if I were you so people can vote it up, as this is what I found and used earlier after discovering the reason for the disappearance. For those wondering it does actually include a userscript version which is appreciated.
