Go to Google’s AUTOMATED URGENT DEAD LINK REMOVAL TOOL, which crawls the dead site immediately as soon as you submit it. You must act immediately, before the scammer has a chance to find a new web host a day or 2 later.
That is easier said than done.
I now have thousands of these dead sites sitting there…. couldn’t possible submit them all, I’ll try just one and see if it pulls the others along.
By the way, I am serious about talking to my “scraper friend”, I am intrigued.