This is super awesome, thank you for sharing!
If you guys are interested in seeing how your recommendation work for the entire reddit, I'd be happy to build you a spaceship similar to this one https://github.com/anvaka/word2vec-graph .
I couldn't find an easy way to download the entire recommendation graph, but it would be awesome if we could make it work. My email is the same as this account at gmail, and twitter is all open: https://twitter.com/anvaka