It "backfires" because people post a small number of mp3 files on github that will promptly taken down? We did it reddit, the DMCA is no more!
What a silly headline.
If you want to actually something that will matter then make sure that github doesn't become a single point of failure for FLOSS software in the future. Or get your GH account banned by posting Lady Gaga tracks in your repos, you do you.