I think you're supposed to just uninstall the debian package, and then you delete the image file.

I have a question for others, I am not sure if this issue is related to installing/uninstalling multiple times easy debian and mer, I found that the total usable size of my 8GB SD card has been reduced considerably, it now only holds about 6 Gigs...

Is there a way to gain that storage back without having to format the card? What would cause that?