You know, I was once lectured by Ars for this. Saving the image onto the harddrive, re-saving it so the code changes, and uploading it as if nothing had happened... You have no idea how mad he was...

Shouldn't we wait for the corrupted image deletion first, then re-upload?

I did upload from the harddrive, I sometimes do that if there are problems, but the image is unchanged. Resaving would create artifacts, a big no-go.