This has been happening a lot with StackOverflow and GitHub pages lately. A lot of the times, the actual GitHub or SO link won't even be on the first page.
I'm surprised they haven't done some kind of manual pruning of junk like that, or maybe they have and it's not working... but on the surface it totally seems like they could implement something that says "GitHub has content X, and these other 10 sites are 99% the same, but we've flagged GitHub as an authoritative source so they'll always outrank the clones".
Maybe it's a fear of appearing unfair. Or maybe they secretly want to hurt Microsoft by turning a blind eye. Or maybe this is actually a much harder problem. If I had to guess it's probably #3. But as a user of search it's frustrating to find the clones ranked above the real stuff.
I'm surprised they haven't done some kind of manual pruning of junk like that, or maybe they have and it's not working... but on the surface it totally seems like they could implement something that says "GitHub has content X, and these other 10 sites are 99% the same, but we've flagged GitHub as an authoritative source so they'll always outrank the clones".
Maybe it's a fear of appearing unfair. Or maybe they secretly want to hurt Microsoft by turning a blind eye. Or maybe this is actually a much harder problem. If I had to guess it's probably #3. But as a user of search it's frustrating to find the clones ranked above the real stuff.