Patent Trolling’s twin: Copyright trolling
Copyright trolling cost me a fairly successful blog my wife ran. The ads paid out more than hosting cost! She had shared an image from a girl who took the photo with permission, but then that girl sold the photo to a copyright troll who then sent a demand letter. Either pay a yearly license of $1750 and a back-pay for the 4 years it had been hosted, or get sued. I retained a lawyer to prepare for lawsuit because we were given permission by the author to use the photo, had email proof. But after a few months of back and forth, we ran out of money to keep fighting and had the lawyer negotiate just killing the site.