This is an interesting approach to the general problem. The general problem being that whatever data source you use is inevitably going to be polluted by player

This is an interesting approach to the general problem. The general problem being that whatever data source you use is inevitably going to be polluted by players who wish to be top of the rankings in a search engine if your engine is used. Maybe this solution - serving a very small niche will work, but I'd be really interested to know if you guys have spent any time trying to SEO your own search engine? Hire an intern whose sole task is to get a page to the top of a fairly common search query like replacing some common python package with your own one?