I look forward to their next DMCA notice to GitHub, to take down their takedown notice, since it contains copyrighted images.

I don't understand how playing an unlicensed torrent makes the source code to the software infringe on the DMCA. Shouldn't they also send pictures of the computers which are running Popcorntime to the computer manufacturers and tell them that they are infringing for enabling Popcorntime? And pictures of the running software to GNU for creating the compilers that compiled the code?