This is more of a meta-comment, but is this being upvoted because it's on github? I think this is a great list, but there are many similar to it not hosted on github.
I'd say it's being upvoted because people think it's a good list. I don't recall seeing other such lists submitted to HN (which doesn't mean there haven't been, just that my memory's not perfect and I haven't seen every submission), and what hasn't been submitted can't be upvoted. I don't think where it's hosted has anything to do with it.