Last month alone RawGit served over 4.2 billion requests and consumed more than 176 terabytes of bandwidth. Those numbers are simply unfathomable to me. They're almost too huge to be real.
Unfortunately, RawGit has also become an attractive distribution mechanism for malware. RawGit was meant to improve people's lives, but jerks are increasingly using it to hurt people.
Since I have almost no time to devote to fighting malware and abuse on RawGit (and since it would be no fun even if I did have the time), I feel the responsible thing to do is to shut it down. I would rather kill RawGit than watch it be used to hurt people.