This is a rather contrived argument. In the rare instances that SO was down, I had to make do looking up the original documentation for whatever language I was

This is a rather contrived argument. In the rare instances that SO was down, I had to make do looking up the original documentation for whatever language I was using. But these scape sites add nothing of value at all, not even as an involuntary backup/archive type, since they are usually laden with ads.