I don't think this is a violation of any fundamental rights. They are spamming and therefore they were blocked. I don't really see the argument against Github wanting to maintain order.
Your right to "free speech" is a constitutional right. In other words, the government can't pass a law or regulation that limits free speech. Now, not all "free speech" is considered constitutionally protected free speech but that's a separate issue entirely. GitHub is a business, it's a private institution. It's their site, they pay for it and they own it, so it's their legal right to do what they want with it. I really don't know the story behind this, so I don't really have a position on it, but that's just how the laws work in this situation. It wouldn't be a free speech rights issue. Plus, like most major sites, GitHub has a sole discretion clause in their ToS. Again, I'm not trying to weigh in on who's right or wrong, it's just how the laws work in these situations, right or wrong.
We do not pre-screen User-Generated Content, but we have the right (though not the obligation) to refuse or remove any User-Generated Content that, in our sole discretion, violates any GitHub terms or policies.
