I'd figure out what IP they're scraping from, and configure my system to serve junk for that. That won't help with previously stolen content, but they won't be

I'd figure out what IP they're scraping from, and configure my system to serve junk for that. That won't help with previously stolen content, but they won't be able to continue doing that in the future. Also, this works as an interim workaround until one figures out where to send the cease-and-desist letter. ;)