Hey Jonah, I can clear this up. The api server was one of the very first things written, back when Mixpanel was a fun side project for some college kids, well

Hey Jonah, I can clear this up. The api server was one of the very first things written, back when Mixpanel was a fun side project for some college kids, well before YC. We picked erlang because it sounded cool. It was actually pretty stable, but the only piece of erlang in our stack. Replacing it was one of those important but nonurgent things that are hard to prioritize. We want interns to have meaningful work, though, and "important + nonurgent" is just about the ideal thing for an intern to work on. They get to work on something interesting, but there's plenty of time for review and refactoring.