De-duping exact matches is a game changed -- search has been miserable to use because of the dupes for so long. I can live with near-similar documents. Very excited to test this out.
Another GitHub Code Search developer here - to add more to this, we rank all the search results, and try to bring the most relevant results to the top. Ideally, if you have 10 pages of results, you shouldn't have to leave page 1 to find what you're looking for :D