It's not about it being free, it's about GitHub taking something you licensed with conditions (ie. attribution or keep this copyright notice and license file, etc.) and blatantly ignoring your license because they know you probably can't afford to sue them for copyright infringement. Open Source doesn't mean you can reproduce and copy the code freely, licenses exist for a reason. Also: of course people care about Facebook et al. (not enough, I'll grant you). Plenty of people complain about Facebook violating privacy every single day.